CN102200600A - Polarization mode dispersion emulators and polarization mode dispersion compensators based on three solid state polarization rotators - Google Patents

Polarization mode dispersion emulators and polarization mode dispersion compensators based on three solid state polarization rotators Download PDF

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CN102200600A
CN102200600A CN 201010147282 CN201010147282A CN102200600A CN 102200600 A CN102200600 A CN 102200600A CN 201010147282 CN201010147282 CN 201010147282 CN 201010147282 A CN201010147282 A CN 201010147282A CN 102200600 A CN102200600 A CN 102200600A
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polarization
light
rotator
dgd
optical
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CN 201010147282
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Chinese (zh)
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姚晓天
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北京高光科技有限公司
通用光讯光电技术(北京)有限公司
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Abstract

The invention relates to polarization mode dispersion emulators and polarization mode dispersion compensators based on three solid state polarization rotators, belonging to optics polarizing equipment and application technical field thereof. The emulators and compensators comprise the following components: a set of difference group delay portions, wherein each portion allows two orthogonal polarization states of a beam of light to complete a DGD (Differential Group Delay) through light birefringence and all DGD portions are arranged at intervals along the direction of light propagation; a set of adjustable light polarization rotators which are placed in the intervals of the DGD, wherein each gap of an adjustable light polarization rotator makes the polarization direction of light to change after going through a DGD and before entering a next DGD, each adjustable light polarization rotator is adjusted by external control signals to generate three different polarization rotations; a control unit used for the communication with adjustable light polarization rotators to individually control each adjustable light polarization rotator to generate a kind of polarization rotation in the three different polarization rotations, thus the light going through the DGD portion and adjustable light polarization rotators generates first order or higher-order polarization mode dispersion.

Description

基于三个固态旋偏器的偏振模色散仿真器和偏振模色散补 Polarization-mode dispersion emulator-based three solid state rotating polarizer and polarization mode dispersion complement

偿器 Compensator

[0001] 优先权声明 [0001] Priority Claim

[0002] 本申请案是根据在美国于2009年3月21日提出的,申请号为61/162,289,名称为“基于三块固态不同分立偏振态的偏振旋转器偏振模式仿真器和偏振模色散补偿器”的申请文本为基础并以该申请案要求优先权。 [0002] This application is based on U.S. in March 21, 2009 proposed application No. 61 / 162,289, entitled "polarization rotator based on three different solid state discrete polarization states and polarization polarization mode simulator mode dispersion compensator "text-based application and claims priority to this application.

技术领域 FIELD

[0003] 本发明属于光学偏振装置及其应用技术领域,特别涉及使用光分离的、具有三个不同偏振态的偏振旋转器,用于产生和分析偏振态的系统、装置和技术。 [0003] The present invention pertains to optical polarization device and its application technology, and particularly relates to an isolated using an optical polarization rotator having three different polarization states for generating and analyzing systems, devices and techniques polarization.

背景技术 Background technique

[0004] 一个光学装置或系统的光的光学财产或叁数可能为各种不同的目的被测量。 [0004] one optical property of the light or triple the number of optical devices or systems may be different in various purposes is measured. 为例,如此的一个光学测量可能被用来决定运转或装置的一个操作状态或系统。 As an example, such an optical measurement may be used to determine an operating state or operating system or apparatus. 光学偏振,举例来说,是各种不同的光学系统、装置和应用的光学上信号的一个重要叁数。 Optical polarization, for example, is a significant number of different optical three optical systems, devices and signal applications. 光学偏振,光学信号谣传比(OSNR),两直角的偏振态之間的差别的组迟延(DGD),举例来说,是对各种不同的光学应用很重要的光学叁数。 Optical polarization, an optical signal to noise ratio (the OSNR), the difference between the two polarization states of the group delay at right angles (the DGD), for example, is a variety of optical applications the number of optical three important. 在光纤沟通制度,偏振-模的色散(PMD),中能重要地挤入光学上装置或者系统的运转和适当操作,尤其当做光纤沟通制度的少量率增加。 In the optical fiber communication system, polarization - mode dispersion (the PMD), the squeeze operation can be important and proper operation of the device or the optical system, in particular increased as the optical fiber communication system in a small rate. (举例来说,从IOGbps到40Gbps,IOOGbps,和超过)PMD通常导致两项原则偏振一个轻信号的组成物以不同的速度移动而且因此传布信号的少量-宽度。 (For example, from IOGbps to 40Gbps, IOOGbps, and over) the PMD composition typically results in a two polarized light signals principles move at different speeds and therefore a small signal is spread - width. 结果,它引起少量-误差的率(BER) 和服务停电的增加。 As a result, it causes a small amount - error rate (BER) and increase the service outage. 不像其他系统损害,像是彩色的色散(激光唱碟),对系统的PMD效果快速地以时间是自然和变化中的随意,让减轻变得困难。 Unlike other system damage, such as color dispersion (CDs), PMD effect on the system quickly to changes in the nature and time is random, so that it becomes difficult to alleviate.

发明内容 SUMMARY

[0005] 本发明提出的基于三个固态旋偏器的偏振模色散仿真器和偏振模色散补偿器,是通过可调的可以产生不同连续可调的控制信号值,来实现控制连续可调光旋转器,以及产生出不同分立信号来控制每个分立的光偏振旋转器产生相应的一个或两个或更多的偏振旋转态。 [0005] The present invention is proposed based on the three solid-state spin-polarization of the polarizer and the polarization mode dispersion emulator mode dispersion compensator, adjustable to different values ​​of the control signal may be generated by a continuously adjustable, adjustable to achieve control of light rotator and generating different signals to control each separate discrete light polarization rotator generates a corresponding one or two or more polarization rotation state. 这种分立的可调的光旋转器可能是可调两个偏振旋转器,每个可调变化光通过第一个旋转角和与第一个旋转角反方向的第二个旋转角实现变化一束光的偏振旋转态的目的。 Such discrete tunable optical rotation may be adjustable two polarization rotators each adjustable by a first change in the optical rotation angle and achieve a change in the first and second rotation angles of the rotation angle in the opposite direction object of polarization rotation state of the light beam.

[0006] 在第一方面,一个光器件用一个入光口来接受输入光,不同差分群延件和可调的偏振旋光器分别在不同群时延器件之间。 [0006] In a first aspect, an optical device with a light input port to receive the input light between the different differential group delay member and the adjustable polarization rotator device are in different group delay. 每个差分群时延器件来实现光的双折射效应,这种效应通过分离输入光两束正交偏振加入不同的差分群时延器件。 Each DGD devices to implement the birefringence effect of the light, this effect of adding different DGD device by separating the two beams orthogonally polarized input light. 每个可调的偏振旋光镜是可调光偏振态,在差分群时延器件之间后,是另一个差分群时延器件和可调偏振旋转器, 该可调偏振旋转器包括一个连续可调的光旋转器,用连续可调的控制信号实现连续可调光偏振态,达到光的目标偏振态,以及分立可调光偏振旋转器用相应的分立控制信号来产生两个或更多的不同分立偏振旋转。 Each of the adjustable polarization rotator of polarization dimmable mirror, between the DGD device, another DGD device and adjustable polarization rotator, the adjustable polarization rotator comprises a continuously adjustment of the rotator, continuous dimmable polarization, the polarization state of light that reaches the target with a continuously variable control signal, and the discrete tunable optical polarization rotator used respective separate control signal to produce two or more different discrete polarization rotation. 这个器件包含一个可控模块可以和可调偏振光旋转器通 This device comprises a module may be controlled and adjustable polarization rotator through

10信,来实现每个偏振旋转器的控制。 Letter 10, to achieve control of each polarization rotator. 这个控制模块是可调的可以产生不同连续可调的控制信号值,来实现控制连续可调光旋转器,以及产生出不同分立信号来控制每个形影分立的看人挑光偏振旋转器产生相应的一个或两个或更多的偏振旋转态。 This control module is adjustable values ​​of different control signals may be generated continuously adjustable, adjustable to achieve control of the rotator, and generating different signals to control each separate discrete Man overwhelmed pick generate corresponding optical polarization rotator one or two or more polarization rotation state. 这种分立的可调的光旋转器可能是可调两个偏振旋转器,每个可调变化光通过第一个旋转角和与第一个旋转角反方向的第二个旋转角实现变化一束光的偏振旋转态。 Such discrete tunable optical rotation may be adjustable two polarization rotators each adjustable by a first change in the optical rotation angle and achieve a change in the first and second rotation angles of the rotation angle in the opposite direction light beam polarization rotation state.

[0007] 在另一方面,一个光器件是提供包括不同差分群时延器件,两束正交偏振光双折射是通过不同差分群时延器件产生两束正交偏振光的群时延实现的,差分群时延器件彼此分立排列在光路中,可调的光偏振旋转器相应的排列在分群时延器件空隙中,一个可调的光偏振旋转器,在两个差分群时延器件间旋转光的偏振态。 [0007] In another aspect, to provide an optical device including different DGD device, two beams of orthogonal polarization to produce two beams is orthogonal to the birefringence of the polarization achieved by a different group delay DGD device , DGD device arranged separate from each other in the optical path, arranged in a respective delay device grouping gap, a variable optical polarization rotator tunable optical polarization rotator, rotating between the two devices DGD the polarization state of the light. 每个可调的的光偏振态旋转器对应的控制信号产生三个不同的偏振旋转,一个控制模块与可调的光偏振旋转器来个字控制每个光偏振旋转器,通过差分群时延器件和可调的偏振旋转器产生三个不同偏振旋转态中的一个来产生一阶或高阶偏振模色散。 Each of the adjustable control signal light corresponding to polarization rotator produces three different polarization rotation, a control module with adjustable light polarization rotator control word to each of the optical polarization rotator, by DGD device and adjustable polarization rotator generates one of three different states of polarization rotation to produce a first or higher order PMD.

[0008] 在另一方面,一个通信器件包含一个波分复用解复用器的波分复用波长沿不同信号路径的不同波分复用信号;一个在不同信号路径的光接收器,相应的,每个光接收器接收一路光的在相应的波分复用波长的波分复用信号来提取数据。 Different WDM signal [0008] In another aspect, a communication device comprises a wavelength division demultiplexer WDM wavelengths along different signal paths; a light receiver at different signal paths, the respective , each light receiver receives light in a way corresponding to wavelength division multiplexed WDM signal wavelength to extract the data. 每个光接收器包含一偏振模色散补偿器,它包括差分群时延器件,通过差分群时延器件实现正交偏振光的双折射,差分群时延器件彼此分立排列在光路中,可调的光偏振旋转器相应的排列在分群时延器件空隙中,一个可调的光偏振旋转器,在两个差分群时延器件间旋转光的偏振态,每个可调的的光偏振态旋转器对应的控制信号产生三个不同的偏振旋转,一个控制模块与可调的光偏振旋转器来个字控制每个光偏振旋转器,通过差分群时延器件和可调的偏振旋转器产生三个不同偏振旋转态中的一个来产生一阶或高阶偏振模色散。 Each optical receiver comprises a polarization-mode dispersion compensator, comprising a DGD device, realized by the birefringence of the orthogonal polarized DGD device, another DGD discrete device arranged in the beam path, an adjustable the respective polarization rotator arranged in the optical delay device grouping gap, a variable optical polarization rotator, rotating the light DGD between the two polarization components, each of the tunable optical polarization rotation generating a control signal corresponds to three different polarization rotation, a control module with adjustable light polarization rotator control word to each of the optical polarization rotator, by generating three DGD device and an adjustable polarization rotator a different states of polarization rotation to produce a first or higher order PMD. 可调偏振旋转器可以消减波分复用信号的偏振模色散。 Adjustable polarization rotator polarization-mode dispersion can be absorbed WDM signal.

[0009] 在另一方面,一种方法来测量在光纤链路中测量偏振模色散,它是用波分复用解复用器来接受光的在不同波分复用波长下不同的波分复用信号,在光纤链路中分离接受到的在不同信号路径下光的波分复用信号,波分复用解复用器接受分离的光在进入解复用器前,产生的监视光信号,监视光信号与不同信号路径分离。 [0009] In another aspect, a method for measuring polarization mode dispersion in an optical fiber link, which is a wavelength division demultiplexer to receive light at different wavelengths in different WDM wavelength division multiplexed signal in the optical fiber link separate WDM signal light received at different signal paths, receiving the monitor light wavelength division demultiplexer separate light before entering the demultiplexer, resulting signal, and the monitor light signal separating different signal paths. 在监视光信号路径调节一个可调的光滤波器来选择波分复用通道,对在选择通道内多监视光信号滤波。 Adjusting a tunable optical filter in the optical signal path monitoring wavelength division multiplexing selected channel, multi-monitor light signal is filtered in the channel selection. 用一个偏振模色散测试仪器测量滤波后的在选择通道内的监视光偏振模色散,此种方法是用差分群时延器件,两束正交偏振光双折射是通过不同差分群时延器件产生两束正交偏振光的群时延实现的,差分群时延器件彼此分立排列在光路中,可调的光偏振旋转器相应的排列在群时延器件空隙中,一个可调的光偏振旋转器,在两个差分群时延器件间旋转光的偏振态,一个控制模块与可调的光偏振旋转器来控制每个光偏振旋转器通过不同分立控制信号来产生两个或更多不同偏振旋转态,这种方法通过差分群时延器件和可调的偏振旋转器产生不同偏振旋转态中的一个来产生一阶或高阶偏振模色散。 Light with polarization-mode dispersion monitor in selected channels of a test instrument for measuring polarization mode dispersion filtering, this method is a DGD device, two orthogonal polarized light beams are produced by different birefringent DGD device two orthogonal polarized light beams implemented in group delay, DGD device are arranged separate from each other in the optical path, arranged in a respective group delay device adjustable gap optical polarization rotator, a polarization rotating tunable light , a rotation of the light between the two polarization DGD device, a control module with adjustable light polarization rotator to control each optical polarization rotator to produce two or more different polarization different separate control signal rotating state, the method generates a first or higher order PMD generated in a different state of polarization rotation through the device and adjustable DGD of the polarization rotator. 可调偏振旋转器可以消减波分复用信号的偏振模色散。 Adjustable polarization rotator polarization-mode dispersion can be absorbed WDM signal. 用配置可调的光偏振旋转器和群时延值来测量光纤链路中波分复用选择通道内的偏振模色散。 Arranged with an adjustable polarization rotator and an optical group delay values ​​measured wavelength division multiplexed optical link selected polarization mode dispersion in the channel.

[0010] 这些和其他部分在图中有具体细节描述、表达和声明。 [0010] These and other specific portions of the detailed description, figures and statements expression. 附图说明 BRIEF DESCRIPTION

11[0011] 图1展示一个能作为PMD补整的可仿效的光学装置或者用三不连续的偏振态以偏振旋转器为基础的PMD仿真和用不同的差别组迟延的双折射的材料。 11 [0011] FIG. 1 shows an optical device can be used as complement and exemplary PMD or PMD emulator whole with three discrete polarization to the polarization rotator and the birefringent based materials with different delay difference between groups.

[0012] 图2展示三之意思的可仿效落实态偏振在图1的旋转器. [0012] FIG. 2 shows three of the meaning and exemplary implementation of the state of polarization rotator of FIG.

[0013] 图3展示一个能作为PMD补整的可仿效的光学装置或者用两不连续的偏振态以偏振旋转器为基础的PMD仿真和用不同的差别组迟延的双折射的材料。 [0013] Figure 3 shows an optical device can be used as a replicable PMD or PMD emulator entire complement with two discrete polarization to the polarization rotator and the birefringent based materials with different delay difference between groups.

[0014] 图4展示一个能作为PMD补整的可仿效的光学装置或者用二和三不连续的偏振态以混合的偏振旋转器为基础的PMD仿真和用不同的差别组迟延的DGD片段。 [0014] FIG 4 shows an optical device can emulate a can as PMD fill the whole or with two and three discontinuous polarization PMD emulator to polarization rotator mixing based and delay different differences group DGD fragments.

[0015] 图5展示一个可仿效的光学装置-能至少作为PMD补整或PMD仿真有一个不断可调的偏振旋转器,偏振旋转器用不连续的偏振态和用不同的差别组迟延的DGD片段。 [0015] FIG 5 shows an optical device to emulate - can at least make a PMD or PMD emulator whole has a continuously adjustable polarization rotator, polarization rotation Used discontinuous polarization and different delay groups of different fragments DGD .

[0016] 图6表示第二个次序PMD价值,当一个光学装置_用三不连续的偏振态以图5有偏振的装置旋转器为基础的DGD价值的一个功能和DGD片段用不同的差别组延迟时。 [0016] FIG. 6 shows a second order PMD value, and when a functional fragment of a DGD device _ with three optical polarization state has a discontinuous value DGD polarization rotator device in FIG. 5 based on the difference between groups with different delay.

[0017] 图7A和7B展示第二个次序PMD价值当做D⑶的一个功能为以图5有的装置为基础一个不断可调的偏振旋转器的一个光学装置评价,偏振有两不连续的偏振态的旋转器和D⑶片段与不同的差别组迟延。 [0017] FIGS. 7A and 7B show a second order PMD value as a function of D⑶ to conventional apparatus of FIG. 5 is based on a continuously adjustable polarization rotator of an optical evaluation device, two polarization discontinuous polarization and rotating D⑶ different fragments of different delay groups.

[0018] 图8展示偏振的一个例将PMD来源或者在FIGS以装置为基础的仿真器最佳化了。 [0018] FIG. 8 shows one case of polarization or the source of PMD in FIGS based device simulator of the best.

[0019] 图9A表示一个装置为展示的PMD宽容测试测量光纤的在PMD宽容沟通引导。 [0019] Figure 9A shows a device for the measurement of PMD tolerance tests show the PMD tolerance of communication fiber guide.

[0020] 图9B和图9C展示有关于D⑶价值咬了误差率(BER)数据和PMD价值,分别地,针对图9A的装置。 [0020] FIGS. 9B and 9C about D⑶ value bite error rate (BER) of data and PMD values, respectively, for the apparatus of FIG. 9A shows.

[0021] 图10显示的是一个使用图5展示在使用装置的多重发讯(WDM)波分复用WDM系统的一个例子。 [0021] FIG. 10 shows a use example of FIG. 5 shows a use of the device in multiple sender (WDM) wavelength division multiplexing WDM system.

[0022] 图IlA和图IlB表示提供PMD在FIGS以装置为基础的回馈圈中的补整的两个光学WDM沟通制度。 [0022] FIGS IlA and IlB showing PMD provides two WDM optical communications system to make the whole apparatus based on FIGS feedback circle.

[0023] 图12和图13表示被装备PMD监听和PMD补整的两个可仿效的光学沟通体系。 [0023] FIG. 12 and FIG. 13 shows two optical communication system to emulate the entire complement of the PMD monitor equipment and PMD. 具体实施方式 detailed description

[0024] 这一份文件揭露光学PMD补偿器和PMD仿真器像是双态偏振旋转器,用不连续的偏振态使用偏振旋转器三之意思态偏振旋转器,双态偏振旋转器和三之意思态偏振的组合旋转器、和光学PMD补偿器和PMD仿真器用不连续的偏振态和至少使用偏振旋转器一个不断可调的偏振旋转器。 [0024] This document discloses an optical PMD compensators and PMD emulator such as a two-state polarization rotators, with the use of discontinuous polarization rotator polarization state of the polarization rotator means three, two-state polarization rotators and three of It means a combination state polarization rotator, and an optical PMD compensator and the PMD emulator used discontinuous polarization state using a polarization rotator and at least one continuously adjustable polarization rotator. 一个偏振旋转器用不连续的偏振态能被控制生产二或更不同、不连续的旋转装置在光上回应不同的价值在控制中信号应用的对偏振旋转器。 Used a polarization rotation of the polarization state can be discontinuous control the production of two or more different, discrete rotary device to respond to different values ​​of the polarization rotator in the control signal is applied on the light. 三之意思态偏振旋转器,举例来说,能被控制在一个控制信号中在光上生产三个不同的旋转装置回应三不同的价值。 The three-state polarization rotator means, for example, production can be controlled on a light control signal in response to three different rotation means of three different values. 在PMD补偿器和在这一份文件中被描述的仿真器中,偏振旋转器用不连续的偏振说如此的当做双态或者三之意思态偏振旋转器用生产的不同DGD价值的多个双折射的片段被用于结合不只有第一个次序PMD但是也在PMD的一或更多较高的次序,举例来说,第二个次序PMD。 In the PMD compensation and the emulator in this document are described, polarization rotation, said polarization Used discontinuous such as a plurality of different birefringent DGD value or mean of three binary state of the polarization rotation produced Used for binding fragment is one or more of the higher order PMD not only the first order PMD, but also, for example, second order PMD. 因此,被描述的PMD补偿器和仿真器能被用来提供效果的PMD补整和仿真。 Accordingly, PMD and fill the entire simulation provides PMD compensation effect and emulators can be used are described.

[0025] 图1展示一个能作为PMD补整的光学装置100或者以三之意思态偏振旋转器为基础的PMD仿真。 [0025] FIG. 1 shows an optical device can be used as a PMD whole complement or PMD emulator 100 to sense the three-state-based polarization rotator. 装置100含复式的差别组迟延(DOT)片段110和可调的光学偏振旋转器120.每DGD片段110从一个双折射的材料-展现招致传输过每DGD片段的两个直角偏振的在光D⑶的光学双折射被造形。 100 group delay difference containing duplex (DOT) fragment of the optical device 110 and an adjustable polarization rotator 120. Each segment 110 DGD from a birefringent material - through two right angles to show the transmission of each lead segment DGD light polarized in D⑶ optical birefringence to be molded. DGG片段110被沿着一条光路安排而且沿着光路和彼此分离。 DGG segment 110 is arranged along an optical path and separated from each other and along the optical path. 可调的光学偏振旋转器120分别地位于D⑶片段110之間的间隙,一个可调的光学偏振旋转器120个对间隙使旋转光的偏振在离开一个DGD片段110之后和在进入一个下游的DGD片段110之前.每个可调的光学偏振旋转器120回应一个控制信号生产三个不同的偏振旋转装置而且如此是三之意思态偏振旋转器。 Tunable optical polarization rotator 120 are respectively located in the gap between the segments 110 D⑶, a variable optical polarization rotator 120 pairs of gaps rotation of polarization of light after leaving a DGD segment 110 and entering a downstream DGD before fragment 110.120 response to each tunable optical polarization rotator a control signal producing three different polarization rotating means and such means is a three-state of polarization rotator. 一个控制组件130被连接在与可调的光学偏振旋转器120的沟通中个别地控制生产生产一个第一个次序的偏振模色散和一或者更多较高的次序的三个不同的偏振旋转装置之一的每一个光学上偏振旋转器120在这之上光那传输过D⑶片段110和可调的光学偏振旋转器120.这一个装置100能被操作控制否定被一般承认的光学多重发讯(WDM)波长-分割的信号的PMD而且因此是一个PMD补偿器的被生产的PMD。 A control assembly 130 is connected individually controlled production produced in the optical communication with an adjustable polarization rotator 120 in a polarization mode dispersion of first order and different polarization rotating means three or more of a higher order one on each of the optical polarization rotator 120 on which the light that can be transmitted through D⑶ segments 100 and 110 control the operation of the tunable optical polarization rotator 120. it is generally recognized that a negation means of multiple optical sender ( WDM) wavelength - PMD signal is divided and therefore produced a PMD compensator PMD. 这一个装置100也能被用来为PMD模拟生产各种不同的PMD效果。 This apparatus 100 can also be used to produce a variety of effects PMD PMD simulation.

[0026] D⑶片段110能有不同的长度生产不同的D⑶价值。 [0026] D⑶ segment 110 can have different lengths production D⑶ different value. 如图1所说明,D⑶以相同的双折射的制成片段110材料能有沿着从左边到右边的光路减少长度。 Illustrated in Figure 1, D⑶ same segment made birefringent material 110 can have a reduction along the length of the optical path from the left to the right. DGD片段110的长度也能增加从左边到这正直沿着光路。 DGD segment 110 length can also increase this upright along the optical path from the left to. 在一些落实方面,DGD片段110的长度能根据一个2或者2m的因数,m是一个完整的事物差异。 In some aspects of implementation, the length of segments 110 can DGD according to a factor of 2 or 2m, m is a complete difference things. D⑶片段110能配置成生产固定的D⑶价值。 D⑶ fragment 110 can be configured to a fixed value D⑶ production.

[0027] 二者择一地,DGD片段110每个可能是可调的DGD片段在一个控制信号之下产生可变的DGD。 [0027] alternatively both, DGD each segment 110 may be adjustable DGD of the variable DGD fragments produced under the control of a signal. 一个光电材料,举例来说,能被包含在如此的一个可调的DGD片段之中藉由改变分别的控制改变DGD价值电力有关电压。 A photovoltaic material, for example, can be included by changing the value of each of the power control change DGD related voltage in such an adjustable DGD fragment. 其他技术也能被用来生产可控制的DGD片段110。 Other techniques can also be used to produce fragments DGD 110 may be controlled. 举例来说,,举例来说,usingfiber引动器能被加倍到一个维持偏振光纤的片段当做可调的DGD 片段110压挤维持偏振的光纤光纤片段.作为另外的一个例,每个变数DGD片段110能在一条光路中藉由成瀑布落下被造形不同长度的多个双折射的片段,而且使用可调的光学旋转器加倍毗连的双折射的片段。 For example ,, for example, usingfiber Actuator can be doubled to a segment of the polarization fiber segments as adjustable DGD of the polarization maintaining fiber 110 is maintained compressed fiber sections. As a further embodiment, each segment 110 variable DGD so that the fall can be a plurality of segments of different lengths to be molded birefringence in an optical path, and a tunable optical rotator doubled birefringence adjoining segments. 当做光学旋转器被控制使旋转光的光学上偏振,透过光路变化的轻通过的DGD价值。 The optical polarization rotator is controlled as the rotation of the light optical, DGD values ​​transmitted through the optical path change by the light. 在一些落实方面,上述的可调的光学旋转器能被偏振开关,在前述双折射的片段的慢、快速主要轴分别地被排列的第一态之间连接转变的两个毗连的双折射的片段被一般承认光的偏振,用成功双折射的片段的慢、快速主要轴、和前述双折射的片段的慢、快速主要轴分别地被使成功双折射的片段的快速的和慢主要轴一致的第二个态代替。 In some aspects of the implementation of the tunable optical polarization rotator can be a switch, connected to adjacent two birefringence transitions between a first state the slow birefringent fragments, rapid main axes being aligned segment is generally recognized that the polarization of light, with the success of the birefringence fragments slow slow fast main axis, and the birefringent fragments, quickly so that the major axes being successful fast and slow birefringent axis of the main segment coincides instead of the second state. 当偏振开关被设定成第一态,被连接毗连的双折射的片段的二个的DGD价值被增加;在第二态,被连接的两个毗连的双折射的片段的DGD价值被减去。 When the polarization switch is set to a first state, DGD value of birefringence segment is connected to two adjacent is increased; in the second state, DGD value of birefringence two adjacent segments are connected is subtracted . 在一些落实方面,可调的光学旋转器和偏振开关两者都能被用来连接造形可变的DGD片段110的一系列双折射的片段的毗连双折射的片段.一个可变DGD第110节的可仿效落实在美国专利5,978,125号和美国专利7,227,686号被描述,两者的对当做这一份文件的揭发的一部份因叁考而吸收的Yao。 In some aspects of implementation, both the optical switch and the polarization rotator can be used to connect the adjustable birefringence contiguous fragment of the 110 series of birefringent variable DGD Zaoxing fragment of a variable DGD 110 can follow the example implementation is described in US Patent No. 7,227,686 and US Patent No. 5,978,125, Yao came to light on a part of this document as a result of the triple test and absorption of both.

[0028] 如此的tTimable D⑶片段110能和可调的光学偏振旋转器120结合提供超过使用固定的DGD片段发生对比较效果的PMD补整的一个被需要的DGD分布或PMD仿真的另外技术上的可挠性。 [0028] Such tTimable D⑶ segments 110 and 120 can be combined tunable optical polarization rotator provided over the use of a fixed DGD PMD occurs fragment comparison of the effect of a full complement of the desired DGD PMD emulator further distribution or technical flexibility. 当D⑶片段110是可调的,控制组件130能被用来控制D⑶片段110和光学偏振旋转器120。 When D⑶ segment 110 is adjustable, the control assembly 130 can be used to control segments 110 and D⑶ optical polarization rotator 120.

[0029] 图2展示三之意思的可仿效落实态偏振在图1的旋转器120.在这一个例的每个可调的光学偏振旋转器120含沿着光路被放在之内系列的两态的偏振旋转器210和220。 [0029] FIG. 2 shows three of the meaning and exemplary implementation of the state of polarization rotator 120. FIG. 1 in this series a tunable each embodiment of the optical polarization rotator is placed in the containing 120 along the optical path within the two state of polarization rotator 210 and 220. 每个两态的旋转器210或220可调整更换光-传输第一个旋转装置角和第一个旋转装置角的反对方向的第二个相等旋转装置角之间的therethrough的一个偏振的旋转装置。 Each two-state rotator 210 or 220 replacing adjustable light - a polarization therethrough between the second rotating means equal angles against the transport direction of the first rotating means and a rotation angle setting angle of the rotating means . 两态的偏振旋转器210和220集体地被控制生产三个不同的偏振旋转装置。 Two-state polarization rotator 210 and 220 are collectively controlled three different polarization rotating means of production. 控制组件130能被用来操作两者都使旋转第一个旋转装置角的偏振的在每个光学偏振旋转器120中的两态的 The control assembly 130 can be used to operate both the rotation angle of the first polarization rotating means in each of the optical polarization rotator 120 of two states

13偏振旋转器210和220,以便偏振的全体旋转装置两次是第一个旋转装置角。 13 polarization rotators 210 and 220, so that the entire two polarization rotation means is a first rotational angle apparatus. 这是三之意思的三个不同旋转装置的第一个态旋转器120。 This is the first three-state rotator of three different rotation means 120 meaning. 控制组件130也能控制第一个两态的旋转器210使旋转偏振第一个旋转装置角和第二个两态的旋转器220使旋转偏振第二个反对的旋转装置角生产一个这两个旋转装置角的总数的全体旋转装置。 Control module 130 can control the two first rotator 210 causes rotation of the polarization state of the first angle and the second rotation means two states of the rotator 220 causes rotation of the second polarization rotation device against a production angle of these two It means the total number of all rotating device rotating angle. 因为这两个旋转装置角在反对的方向中,净的旋转装置是零。 Because two rotating means in a direction against the angle of rotation is zero net means. 这是三之意思的这三个旋转装置的第二个态旋转器120。 This is the second state of the three rotators rotating apparatus 120 of the meaning of the three. 当两者的两态旋转器210和220被控制使旋转偏振第二个反对的旋转装置角,全体的旋转装置两次是第二个旋转装置角但是对第一个旋转装置角在一个反对的旋转装置方向中。 When both two-state rotation 210 and 220 are controlled to rotate the polarization angle against the second rotating means, the rotating means is twice the entire angle of the second rotating means rotating means but a first angle against a direction rotating means. 这是三之意思的三个不同旋转装置的第三态态旋转器120。 This state is the third state rotator three different rotation means of three 120 meaning.

[0030] 在一些落实方面,两态的偏振旋转器210和220可能是磁电机-避免任何机械的感人部分的光学(MO)偏振旋转器。 [0030] In some aspects of implementation, the two-state polarization rotator 210 and 220 may be a magneto - avoiding any mechanical moving portion of optical (MO) polarization rotator. 没有移动零配件MO旋转器或其他偏振旋转器这一种使用能改良可靠性而且操作装置的生活。 MO no moving parts or other rotating polarization rotator using this can improve the reliability and operating life of the device. 举例来说,两态的MO旋转器能被设计有下列的财产:(1)当在MO旋转器的饱和电压Vsat上面的一个正电压被应用到MO旋转器(也就是, V彡+Vsat),MO旋转器使旋转光的泡+22. 5° ;而且(2)当在饱和上面的一个负电压电压Vsat被应用(也就是,V S-Vsat)时,旋转器使旋转泡-22. 5° . 二者择一地,偏振旋转器的其他类型如此的当做液体的水晶偏振旋转器和使用电晶体的双折射的晶体偏振旋转器也可能用适当控制信号与上述的操作态一起配置。 For example, MO rotator two states can be designed to have the following properties: (1) when the rotator is applied to the MO (i.e., V San + Vsat) at a positive voltage MO saturation voltage Vsat above rotator ., MO bubble spinner light is rotated +22 5 °; and (2) when the application (i.e., V S-Vsat) when a negative voltage is above the saturation voltage Vsat is on, the rotary spinner bubble -22. 5 °. alternatively, other types of polarization rotator such as a liquid crystal polarization rotator and a birefringent crystal an electric crystal polarization rotator may be configured with the above-described operation state with the appropriate control signals.

[0031] 作为一个特定的例,为每个两态的偏振旋转器,第一个旋转装置角能是+22. 5°, 和第二个反对的旋转装置角能是-22. 5° .每个旋转器对能在六不同的方法中使旋转收入光的偏振:全体旋转装置+45度藉着旋转装置+22. 5度从经由旋转器210和另外旋转装置+22. 5度从经由旋转器220,旋转装置的一个0度的旋转装置+22. 5度从经由第一个旋转器210和旋转装置-22. 5度从经由第二个旋转器220,和全体旋转装置-45度藉着旋转装置-22. 5度从经由第一个旋转器210和第二个旋转器220. —个旋转器对在两个毗连的双折射的材料或者DGD片段之间被插入造形一个简单的PMD来源或发电机。 [0031] As a specific embodiment, each polarization rotator two states, a first angle of rotation means could be +22. 5 °, and the second means against the rotation angle can be -22. 5 °. each polarization rotator rotatable income six light at different method manipulation: rotating means all means +22 +45 degrees by 5 degrees of rotation from the rotator via a rotating means 210 and the further from the 5 degrees through +22 rotator 220, a rotating means 0 +22 degree rotation means. 5 degrees from the first via a rotator and rotating means 210-22. 5 degrees from, and all the rotating means via the second rotator 220 -45 degrees by rotating device 210 and -225 degrees from the second rotational via a rotator 220. the first - on a rotator is inserted between the birefringent material Zaoxing DGD fragment or a simple two adjoining PMD source or generator. 当两个毗连的晶体之間的旋转器对使旋转泡被+45度,这两个晶体的光学上轴被排列生产最大组合的DGD。 When the rotation between two adjacent crystals bubbles are rotating +45 degrees, the optical axes of the two crystals are arranged in combination produced a maximum DGD. 当两个毗连的晶体之間的旋转器对使旋转泡被-45度,这两个晶体的光学上轴是计数器_排列生产最小的组合DGD。 When the rotation between two adjacent crystals rotation bubbles are -45 degrees, the optical crystal axes of these two counters is arranged _ combination produced a minimum DGD. 当两个毗连的晶体之間的旋转器对使旋转泡0度,这两个晶体的光学上轴是生产的彼此的45度第二个次序PMD。 When the rotation between the two crystals adjacent the rotating bubble 0 degrees, the optical axes of the two crystals is 45 degrees to each other in a second production order PMD. 每个旋转器对0度偏振旋转装置让PMD补偿器和仿真器生产较高的次序PMD效果。 Each polarization rotator rotating means so that PMD compensator 0 degrees and emulators to produce higher order effects of PMD.

[0032] PMD价值的总数能与(N+1)双折射的材料断面,而且N旋转器对是3N。 [0032] PMD value of the total energy and the (N + 1) section birefringent material, and N rotator pair is 3N. 因为N = 6,完全的PMD价值是729. D⑶(第一个次序PMD)的完全价值是2N。 Since N = 6, the value is complete PMD 729. D⑶ (first order PMD) of the full value is 2N. 因为N = 6,完全的D⑶ 价值是64. 二者择一地,N双折射的材料断面和N旋转器对能被用来发生3NPMD价值,绝对的D⑶范围被减少一个半份因为D⑶价值是从-对+DGDmax | 2的DGDmax | 2. Since N = 6, the value is both complete D⑶ 64. alternatively, the birefringence of the material N and the cross section can be used for N rotator occurs 3NPMD value, absolute D⑶ range is reduced by one half the value of parts is because D⑶ from - to + DGDmax | 2 of DGDmax | 2.

[0033] 在图2,这两个偏振旋转器210和220在两人中为三之意思态旋转器120能在不同时间被刺激使最小短暂的损失。 [0033] In FIG. 2, these two polarization rotators 210 and 220 in both the tri-state means of the rotator 120 can be stimulated to minimize transient loss at different times.

[0034] 能作为PMD补整的图3展示光学上装置100的一个例或者以两态的偏振旋转器为基础的PMD仿真。 [0034] 3 can appear on one case of the optical apparatus 100 as a whole in FIG PMD or complement the polarization rotator two states based on the PMD emulator. 装置300同样地同样地被构成图1的装置100但是代替三之意思态偏振旋转器120与两态的旋转器,像是在图2的旋转器.PMD价值的总数能与(N+1)双折射的材料断面,而且N旋转器对是比被图1有的装置发生双折射的片段110的相同数目的PMD价值的数目更少的2N。 Likewise apparatus 300 is configured similarly to apparatus 100 of FIG. 1, but instead of the mean state of polarization rotator 120 and the rotator two of three states, such as the total number of the rotator 2 in FIG .PMD energy value and (N + 1) section birefringence, and N rotator pair is the same number of segments 110 of the PMD value of birefringence occurs than conventional apparatus of FIG. 1 is a fewer number 2N. 在图3的两态旋转器的使用是较不昂贵的超过三之意思态偏振藉由使用在图2的系统中是必需的一半两态的偏振旋转器旋转器120. In a two-state using a spinner FIG. 3 is a less expensive means than three of the state of polarization by using the system of Figure 2 is necessary in polarization rotator rotator half 120 two states.

[0035] 图4展示一个能作为PMD补整的可仿效的光学装置或者用二和三不连续的偏振态以混合的偏振旋转器为基础的PMD仿真和用不同的差别组迟延的双折射的材料。 [0035] FIG 4 shows an optical device can be emulated can be used as a PMD whole complement or with two and three discontinuous PMD emulator polarization state to polarization rotator based mixed with different delays and different groups of birefringence material. 偏振旋转器210的数量用两不连续的偏振态和偏振旋转器120在装置中有三不连续的偏振态和他们的相对位置能被配置基于特别应用的特定需求。 Number polarization rotator 210 with two discrete polarization and a polarization rotator 120 has three discrete polarization states and their relative positions can be configured based on the specific needs of a particular application in the device.

[0036] 以用DGG片段110来插入纸的不连续态偏振旋转器为基础的PMD补整的光学上装置的上述结构或PMD仿真为PMD补整或者PMD仿真被提供的各种不同的应用提供可设计的有特色的PMD价值。 [0036] In the paper by inserting the fragment DGG 110 discontinuous state polarization rotator based PMD or PMD emulator complement the above structure the entire optical apparatus to fill the whole PMD or PMD emulator is provided by a variety of different applications It can design distinctive PMD value. 在一些应用中,除了有特色的PMD价值之外,提供从一不连续的PMD价值到另外的PMD价值的某一程度连续的调谐可能是令人想要的。 In some applications, in addition to the PMD value of the unique offers from a discontinuous PMD value to some extent another PMD value of continuous tuning may be desirable. 使用一或更不断可调的偏振旋转器到用不连续的偏振态更换偏振旋转器能提供PMD价值的某一程度连续的调谐和增加PMD的数目使用不连续态偏振旋转器与一个相似的装置相关的评价。 Using one or more means the number of continuously adjustable polarization rotator used to replace discrete polarization state the polarization rotator provides a certain degree of PMD value and continuous tuning of increased PMD discontinuous state polarization rotators and a similar related evaluation.

[0037] 如此的一个装置与一或更不断可调的偏振旋转器能配置成含每个展现招致传输过每D⑶片段的两个直角偏振的在光D⑶的光学双折射的D⑶片段,和分别地位于在D⑶ 片段之间的间隙的可调的光学偏振旋转器每个可实施的使旋转光的偏振在离开一个DGD 片段之后和在进入一个下游的DGD片段之前。 [0037] Such a device with one or more continuously adjustable polarization rotator can be configured to show the lead-containing each of two orthogonal transmission through each segment D⑶ light polarized in an optical birefringence D⑶ ​​D⑶ fragments, respectively, and tunable optical polarization rotator positioned between D⑶ segments each gap may be implemented in the polarization rotation of the light after leaving a DGD DGD segment and before entering a downstream fragment. 可调的光学偏振旋转器含不连续的_说光学偏振旋转器和一或更不断可调光学偏振旋转器。 Tunable optical polarization rotator _ containing discontinuous and said optical polarization rotator or a continuously tunable optical polarization rotator. 每个不连续的_态光学偏振旋转器回应一个分别的控制信号生产二或更不同的不连续的偏振旋转装置。 Each discontinuous optical polarization rotator state _ a response to each control signal producing two or more different discrete polarization rotation means. 每个不断可调的偏振旋转器回应一个分别的控制信号举例来说,不断地使旋转光的偏振为控制信号一个电压,不断地在操作范围里面变更。 Each continuously adjustable polarization rotator response to a control signal, respectively, for example, continuously rotating polarization of the light signal as a control voltage, which continuously changes in the operating range. 一个控制组件被提供在与不连续者的沟通中-态个别地控制生产不同、不连续偏振旋转装置之一的每一个光学上偏振旋转器光学偏振旋转器。 A control assembly is provided in communication with those in the discontinuous - individually control different manufacturing state, discontinuous polarization rotator rotating polarized optical polarization rotator on one of each of the optical device. 控制组件也在与的沟通中这一或者更不断可调光学偏振旋转器控制每个不断可调光学偏振旋转器。 Also in communication with the control assembly that continuously tunable or more optical polarization rotator controls each continuously tunable optical polarization rotator.

[0038] 图5展示一个能作为PMD补整的可仿效的光学装置500或PMD仿真用不同的差别组迟延有一个不断可调的偏振旋转器510、不连续态偏振旋转器120或210和D⑶片段。 [0038] FIG. 5 shows a simulation can be emulated as a PMD whole optical device 500 or make a PMD delay continuously adjustable polarization rotator 510 with a different set of differences, the discontinuous state or polarization rotators 120 and 210 D⑶ fragments. 在这一个例中,不断可调的偏振旋转器510在第一个之间被放置和第二D⑶片段110从最初的地方,装置的部分和不连续态偏振旋转器120或者210被下游地从不断可调的偏振旋转器510放置。 In this embodiment, continuously adjustable polarization rotator 510 is disposed between the first and second segments 110 D⑶ from the first place, the discontinuous portion of the device and the state of polarization rotator 120 or 210 is downstream from continuously adjustable polarization rotator 510 be placed. 在其他落实方面,不断可调的偏振旋转器510能在装置中的其他位置被放置。 In other aspects of the implementation, the continuously adjustable polarization rotator 510 can be placed in other locations in the apparatus.

[0039] 各种不同的研究在FIGS中的装置的PMD行为上被引导。 [0039] Various studies are guided in FIGS PMD behavior of the device. 1_5.在FIGS的装置的方面之一。 1_5. One of the aspects of the apparatus of FIGS. 1-5在光的波长上是被发生的PMD的依赖价值。 PMD value is dependent on the wavelength of light 1-5 is occurring. 一些PMD价值或态在FIGS根据装置发生了。 Some PMD value or state occurs in the apparatus according to FIGS. 当一些与光学上波长无关时,1-5依赖光学波长。 While some optical wavelength independent, dependent on the optical wavelength 1-5. 波长-依赖的PMD价值或态在FIGS根据装置发生了。 Wavelength - dependent PMD value or state occurs in the apparatus according to FIGS. 1-5能在WDM沟通制度和不同波长的光被处理的其他应用弄复杂PMD仿真或者补整而且损害运转。 1-5 can get in WDM communication systems and other applications, different wavelengths of light to be processed PMD complex simulation or damage and make the whole operation. 在PMD价值或者与光学上波长无关的态操作一个PMD仿真或者补整装置是令人想要的。 On the PMD value or wavelength independent of the optical state of a PMD emulator operation means or the entire complement be desirable.

[0040] 图6当做被装置发生的D⑶价值的一个功能在图1中有所有三之意思态偏振旋转器表示装置的一落实的第二次序PMD (SOPMD)价值。 [0040] FIG. 6 is occurring as D⑶ value of a function device in FIG 1 means the state of all three represent a second order polarization rotator device implementing a PMD (SOPMD) value. SOPMD价值在SOPMD-D⑶地图的各种不同区域被分配。 SOPMD value is assigned in various regions SOPMD-D⑶ map. 这一个装置为各种不同的DGD价值缺乏SOPMD的连续调谐。 This is a device for a variety of DGD values ​​SOPMD lack of continuous tuning. 它也被发现只有这一个装置中的一些SOPMD价值与光学上波长无关光当其他SOPMD价值依赖光学波长时候。 It has also been found that only some of the optical wavelength at which a value SOPMD means independent of the other light when the optical wavelength dependent value SOPMD time.

[0041] 特别地,一般发现装置的落实在输入藉由使用一个不断可调的偏振旋转器在图5, 当使用所有两态的偏振旋转器作为装置的其它部分能提出在变得与光的光学上波长无关 [0041] In particular, the implementation apparatus is generally found by using a continuously adjustable polarization rotator input in FIG. 5, when all the two-state polarization rotator as other portions of the device can be made in light becomes optical wavelength independent

15的图5被装置发生的所有PMD态的时候。 When the device 5 of FIG. 15 PMD all states occur. 图。 Fig. 7 —和7场B展示SOPMD-D⑶在这一个装置中映射。 7-- field B and 7 show mapping SOPMD-D⑶ this apparatus. 图7A D⑶价值,在O-IOOps之间表示SOPMD价值为功能。 FIG. 7A D⑶ value between O-IOOps represented SOPMD value function. 和以所有三态的偏振旋转器在图1被装置发生的PMD态的图6的PMD-D⑶的地图比较起来,使用的这结合在输入的一个不断可调的偏振旋转器当使用所有两态的偏振旋转器作为在图5以装置为基础的装置的其它部分的时候当不断可调的偏振旋转器在下游两态的偏振旋转器的不连续态的各种不同结合之下被调节,提供类似的连续PMD态。 And in all three states of polarization rotator comparison map PMD-D⑶ FIG FIG 1 is PMD state occurs apparatus 6, which in conjunction with a continuously adjustable polarization rotator input when all two-state polarization rotator as when other portions of the device of FIG. 5 when the apparatus based continuously adjustable polarization rotator is adjusted under a variety of different binding downstream two-state polarization rotator discontinuous state, provided PMD similar continuous state.

[0042] 在运转两态的偏振旋转器和一给定组固定的D⑶的一给定组设定为D⑶片段评价,不断可调偏振旋转器的连续调谐导致SOPMD价值不断地变更向前在图7B-表示因两态的偏振旋转器中的设定的特定结合而发生的挑选的PMD-DGD的曲线规显示的曲线规之一和一给定组固定的D⑶评价为D⑶片段。 A polarization rotator [0042] In the operation of the two states and a given set of fixed D⑶ a given set of set evaluation D⑶ fragment, continuous tuning continuously adjustable polarization rotator causes SOPMD value changing constantly in FIG forward one curve represents the selection of regulatory 7B- specific binding due to the polarization rotator in the two states occur set of rules PMD-DGD curve shown and given a fixed set of D⑶ evaluated as D⑶ fragment. 在PMD-D⑶地图的特定区域里面的PMD中的这连续的tunability,类似的连续PMD-D⑶的报导和波长-独立的PMD态在各种不同的PMD仿真和补整应用中是有利的图5作装置的这特别落实。 This continuous tunability in a specific area of ​​the map PMD-D⑶ inside the PMD, similar continuous PMD-D⑶ reports and wavelength - independent PMD state FIG 5 is advantageous in various PMD emulator applications and the entire complement for this particular device implementation.

[0043] PMD仿真器或在以装置为基础的补偿器。 [0043] PMD emulator-based device or compensator. 1-5能在各种不同的光学装置和系统被实现提供需要PMD仿真或补整。 1-5 can be in a variety of optical devices and systems are needed to achieve the PMD emulator provides the entire or complement. 特定的例子在下面被图1的关于装置100的特定参考所提供。 In the following specific examples are on a specific reference device 100 is provided in FIG. 1. 一般了解在FIGS的其他装置。 General understanding of the other devices of FIGS. 2-5也能被用来实现被描述的例子。 2-5 can also be used to implement the example being described.

[0044] 图38展示偏振的一个例将PMD来源或者在FIGS以装置100为基础的仿真器800 最佳化了。 [0044] FIG. 38 shows one case of the PMD polarized source or device 100 in FIGS based emulator 800 of the best. 1和2-5.在列举的装置800中,Aan输入偏振控制器(计算机)310810在到DGD片段和图1的装置100或FIGS的一个装置的可调的光学偏振旋转器是上游的光路被提供。 1 and 2-5. In the illustrated apparatus 800, Aan input polarization controller (computer) 310 810 in the adjustable DGD segment and a means or device 100 of FIGS. 1 is an optical polarization rotator is an optical path upstream of the provide. 2-5受到一个输入光束301801而且控制输入的偏振光束301801.装置处理输入光束301801生产一个输出光束302802。 2-5 by a polarized light beam input beam processing apparatus 301801. 301801 input light beam and the control inputs produce an output beam 302 802 301 801. 一输入偏光计320820向上游对D⑶片段在光路中被提供和可调的光学偏振旋转器和下游地从这输入偏振控制器310810测量输入光的偏振被一般承认的从这输入偏振控制器310810.此外,一个输出偏光计330830从D⑶片段和可调的光学偏振旋转器被在光路下游地提供测量从DGD片段和可调的光学偏振旋转器被收到的光的输出偏振。 An input polarimeter 320,820 pairs D⑶ and adjustable segments are provided in the optical path upstream to downstream optical polarization rotator and a polarization controller to the input from the input polarization measurements 310,810 is generally recognized from an input polarization controller 310,810. Further, a 330,830 polarimeter output is provided by measuring the output polarization of the light received from the fragment and adjustable DGD of the optical polarization rotator in the optical path downstream from D⑶ fragments and tunable optical polarization rotator. 控制组件340根据"处理器"表现而且"接口电子学"控制至少一(1)这输入偏振控制器和(2)以输出的标准的输入偏振和标准输出偏振为基础的可调的光学偏振旋转器光束302802. The control assembly 340 "processor" and expression "Electronics Interface" controlling at least one (1) of this tunable optical input polarization and polarization controller (2) to output the standard input and standard output polarization rotation of polarization based light beam 302 802.

[0045] 在图38操作装置800方面,当展示沟通连杆的一个PMD宽容测试或系统,是令人想要的是,输入收买对PMD来源I仿真器为最大PMD效果被排列。 [0045] FIG. 38 in terms of the operating device 800, a PMD tolerance when the test system display or communication link, be desirable that the input source of acquisition of the PMD emulator I PMD effect maximum are arranged. 在图38的装置而设计达成自动的偏振最佳化当发生不同的PMD评价的时候。 In the apparatus of FIG. 38, when designed to achieve automatic polarization optimization occurs when different PMD evaluation. 明确地,在图38的装置用一个微寸_处理器或一部计算机能藉由控制三之意思发生不同PMD价值态PMD发电机100。 Specifically, in the apparatus of FIG. 38 _ a processor or a computer with a micro-inch control can occur by means of three different states PMD PMD value generator 100. PMD 发电机100的所有可能PMD价值能在一个查询台中被作成表。 All possible PMD PMD value generator 100 can be made in a query Taichung table. 不同的PMD价值从查询台依照使用人的选择被挑选。 PMD value different from the query using the station is selected in accordance with the people's choice. 在另外的一个操作中,在图38的装置能被用来藉由有不同的分布功能,像是Maxwellian分布规画处理器发生统计的第一和第二个次序PMD分布。 In a further operation, in the apparatus of FIG. 38 can be used by different distribution of functionality, such as Maxwellian distribution planning processor has a first statistical distribution and the second order PMD. PMD价值从查询台依照一个特别分布的统计压重被挑选。 PMD value from the information service in accordance with a particular statistical distribution of ballast were selected.

[0046] 在仍然另外的一个应用中,在图38的装置能为最坏的DGD效果-45度的对准作为偏振最佳化。 [0046] In yet a further application, the device in FIG 38 can be optimized as a polarization of -45 degrees to align the worst DGD effect. 装置在输入边含一个偏振控制器(计算机)和一个偏振监视器。 Means containing a side polarization controller (computer) and a polarization monitor input. 偏振监视器能是一在_线polarimter或者偏振光束有着定方位的劈的人适当地在PMD发电机内使双折射的物质机械要素的桥一致了。 A polarization monitor could be consistent with the splitting line polarimter _ people or polarizing beam has a predetermined orientation so that the material is suitably a mechanical element in the birefringence of the generator bridge PMD. 处理器从偏振监视器得到数据而且将指导送到从偏振监视器依照信号控制计算机。 Obtained from the polarization data processor and the monitor to guide the monitor signal in accordance with the polarization control computer. 举例来说,处理器能被作预定表教排列输入泡双折射的经过装置达成最坏的第一次序信号的PMD效果通过的物质的机械要素的桥的45度的计算机。 For example, the processor can be arranged to make a predetermined input through the teaching table birefringence means the bubble to achieve a first order PMD effects of the worst computer signal bridge 45 degrees by a mechanical element of a substance.

[0047] 此外,在图38的装置能为最坏者完全的PMD效果作为偏振最佳化。 [0047] Further, in the apparatus of FIG. 38 can be fully optimized as a polarization effect of PMD were the worst. 第二个偏光计或其他类型的监视器经过装置能在装置的输出端被放置发现偏振(DOP)的度或其他叁数指示信号通过的PMD效果。 Polarimeter second type of monitor or other means can be disposed through the discovery of polarization (DOP) or other three indicators PMD effect signal at the output of the device. 处理器受到第二个偏振监视器的信号而且教计算机根据调整输入泡达到偏振(DOP)的度的价值.处理器也能控制PMD发电机发生不同的PMD价值。 By the signal processor and a second polarization teach computer monitor according to the adjustment value reaches the input of the bubble polarization (DOP) of the processor can also control the generator occurs PMD different PMD values. 举例来说,处理器能被作预定表控制使最小为不同的PMD价值被第二个偏振监视器发现的DOP 的计算机。 For example, the processor can be controlled to a predetermined list of computer DOP different PMD minimum value is found and a second polarization monitor. 处理器也能比较DOP价值或者从偏振监视器1和2被获得见到PMD的效果的其他叁数。 The processor can also compare DOP value 1 or 2 and the other number is obtained from the polarization monitor the effect seen in the triple PMD.

[0048] 图4A、9 一表示一个装置为展示的PMD宽容测试测量光纤的在PMD宽容沟通引导。 [0048] FIG. 4A, 9 a device is represented by a PMD tolerance tests show PMD tolerance is measured in the communication fiber guide. 在这一个例中,在图8的装置800在这里被用到当做一个PMD来源。 In this embodiment, in the apparatus 800 of Figure 8 is used here as a source of PMD. 光学发射器TX410910 被提供进入装置100之内发生而且指示输入光束。 TX410910 the optical transmitter is supplied into the apparatus occurs in the input beam 100. Further indicated. 光学接收器RX 9420被下游地从装置100和输出偏光计8330放置.一个少量误差估计(BER)试验机9430被用来处理光学上接收器9420的电力有关输出而且测量BER。 The optical receiver 9420 is downstream from the RX 100 and an output device 8330 placed in the polarimeter. A small amount of error estimates (BER) tester 9430 is used to handle the power output of the optical receiver is about 9420 and measured BER. 在运转,在图94A的装置是最坏的D⑶或PMD效果的第一个组。 In operation, the apparatus of FIG. 94A in the first group is the worst D⑶ or PMD effect. 被接收器收到的数据当D⑶或者装置100的PMD逐渐地被增加时,RX 9420 进入BER试验机4930之内被喂测试少量误差率。 Data is received by the receiver or when D⑶ PMD apparatus 100 is gradually increased, RX 9420 are fed into the BER tester to test a small amount of error rate in 4930. 少量误差率(BER)数据对D⑶和PMD价值被计画,当做分别地在图94B和图94C显示。 A small error rate (BER) of data and PMD values ​​are D⑶ plan, respectively, as shown in FIGS. 94B and 94C. 当BER在一个门槛上面时,D⑶和PMD宽容被定义为对应的DGD或者PMD价值被使用人设定。 When a threshold BER at the top, D⑶ and PMD tolerance is defined as a value corresponding to the PMD or DGD is set using human.

[0049] 在图94A的装置也能被当作一个PMD补偿器使用。 [0049] In the apparatus of FIG 94A can also be used as a PMD compensator. 在图8的装置800接收器当做部分为PMD补整在这里被用组件上游的对接收器探测器920.装置800的输入口被连接举例来说,受到一个被输入的光学信号一个被一个被加倍到光纤网络的发射器910发生的光纤网络的一个光学沟通信号。 As part of the receiver apparatus 800 in FIG. 8 is a PMD whole complement components used herein in the upstream of the detector to the receiver 920. The input port device 800 is connected for example, by an optical signal to be input is a is a a fiber optical network communication signal is doubled to a fiber network transmitter 910 occurs. 装置800的处理器从输出偏振接受DOP或者其他PMD指示叁数检测8330,然后教计算机8310调整被输入的泡以便经过被偏振监视器8330发现的装置的信号的DOP被最大值。 800 from the processor means receiving the output polarization DOP or other PMD detector 8330 indicates the number of three, and then soak teach computer 8310 so as to adjust the input signal through DOP apparatus 8330 is found to be the maximum value of the polarization monitor. 当DOP为PMD价值设定被最大值时,PMD效果被认为被补整。 When the DOP is set to the maximum value of PMD, PMD effect is considered to be complementary whole. 要获得被PMD补整最佳化的,当计算机8310被操作调整取DOP最大值的输入泡时,PMD价值也被改变。 To obtain the full complement PMD optimized, when the computer 8310 is taken to adjust the input maximum bubble DOP, PMD value is also changed. 被PMD最佳化的补整符合最好的PMD设定和最大D0P。 PMD is the best of the best fill the whole meet the set and maximum PMD D0P.

[0050] 图510展示在以在图1的装置100或在FIGS的一个装置为基础的图8使用PMD补偿器800的WDM系统的一个例。 [0050] FIG. 510 shows the apparatus in one case to 100 of FIG. 1 or FIG. 8 is based on the use of a PMD compensation device in FIGS WDM system 800. 2-5在FIGS。 2-5 in FIGS. 1和2为连杆PMD判断或决心和补整。 1 and 2 for the determination and a link PMD is determined or the entire complement. 在这一个系统中,多光学发射器TXs 5101010在系统的发射器边被用来在不同的WDM波长生产光学WDM信号。 In this system, multiple optical emitter TXs 5101010 was used to produce WDM optical signals at different wavelengths in the WDM system the transmitter side. 在系统的发射器边的一个WDM多工器(MUX) 52010201010被用来在系统的接收器边对一个接收器为传动结合光学WDM信号变成一个与PMD的光纤连接5401040。 In a WDM multiplexer (MUX) system transmitter side 52010201010 is used to drive a bound receiver is a WDM optical signal into a fiber optic connector 5,401,040 to PMD in the receiver side of the system. 在接收器边,一个WDM解双工器(DeMUX) 5301030被用来沿着不同的光路进入个别的光学WDM 信号之内在不同的WDM波长分开被一般承认的光学WDM信号。 At the receiver side, a diplexer WDM solution (DeMUX) 5301030 is used to enter different intrinsic individual optical WDM wavelengths of the WDM signal is generally recognized that separate optical WDM signal along different optical paths. 在每个光路中,在图38的装置800被提供为PMD补整处理分别的光学WDM信号,然后加工的光学WDM信号为数据发现下游地被指示或另外地处理。 In each optical path, the optical WDM signal 800 is provided to fill the whole PMD are processed in the apparatus of FIG. 38, the optical WDM signal is then processed for the data found in downstream processing or otherwise indicated.

[0051] 在图58的PMD补整装置800的模中,当PMD补整被最佳化,对应第一和第二个次序PMD价值能被视为接近这光纤连接5401040的那些。 [0051] In FIG PMD apparatus 58 of the entire complement of die 800, when the entire complement PMD is optimized, corresponding to the first and second order PMD value of fiber optic connector which can be considered close to those of 5,401,040. 明确地,处理器变更PMD价值当控制偏振控制器(计算机)310810调整输入泡取DOP价值或者其他PMD最大值的时候影响被偏振监视器330830发现的指示叁数.符合至被PMD发电机发生的最大DOP价值的第一和第二个PMD价值的结果被视为接近光纤连接5401040的真PMD价值。 Specifically, when the control processor changing the value of PMD polarization controller (computer) 310 810 DOP adjustment input value, or when bubbles get maximum impact PMD other three indicators were found 330,830 polarization monitor. PMD conform to the occurrence of the generator the results of the first and second PMD value of the maximum value of DOP is considered to be close to the true value of PMD of an optical fiber connection 5401040. [0052] 图。 [0052] FIG. 6A 11 —和6B IlB表示两个光学WDM沟通制度-提供PMD以在图1的装置100或在FIGS的一个装置为基础的回馈? 6A 11 - represents two and 6B IlB WDM optical communication system - provided in PMD apparatus 100 of FIG. 1 or a device in FIGS based on feedback? ? 圈中的补整。 Fill the entire circle. 2-5或2. —个PMD补偿器1101 被提供基于在图1的装置100或在FIGS的一个装置。 2. 2-5 or - a PMD compensator 1101 is provided a means or device 100 in FIGS. 1 based on FIG. 2-5.如图6A 11—所说明,一个偏振控制器(计算机)810被向上游从装置100放置控制装置100和一个像偏光计这样的偏振监视器8330的被一般承认信号的光学上偏振,被用加倍到装置100的光学上输出发现连杆的组合PMD效果和PMD来源。 2-5. FIG. 6A 11- illustrated, a polarization controller (computer) 810 and a device 100 such as a polarimeter polarization monitor is generally recognized that the optical signal 8330 on the polarization control apparatus 100 is placed upstream from the , is doubled by the optical device 100 to output found that a combination effect of PMD and the link PMD sources. PMD影响像DOP这样的指示叁数,被喂回到以微处理器为基础的电子线路8340。 PMD impact indicates the number of three such as DOP, is fed back to the microprocessor-based electronic circuit 8340. 线路8340教偏振控制器(计算机)3810调整进入装置100的光的泡取或者最大值使最小叁数。 Line 8340 teaches a polarization controller (computer) 3810 into the adjusting means 100 of the light-trapping bubbles or to minimize the maximum number of three. 如果DOP被当作叁数使用,当PMD适当地被补整时,它的价值将会达成一个最大。 If the DOP is treated as triple the number of use, when the PMD is properly fill the whole, its value will reach a maximum. 接收器RX 11610被提供接受而且发现偏振监视器8330的光学上输出. The receiver RX 11610 is found to provide acceptable and output optical polarization monitor 8330.

[0053] 图6B IlB表示PMD补整的例使用被发现的少量-误差-估计当做在图1控制装置100或在FIGS控制一个装置的回给。 [0053] FIG. 6B IlB embodiment showing PMD whole complement found using a small amount - Error - estimation control apparatus as in FIG. 1 or 100 in FIGS back to control a device. 2-5.在这一个方案中,PMD补偿器1102含计算机810从接收器RX 1110到控制线路840的装置100,接收器RX 1110、以处理器为基础的控制线路840和回给。 2-5. In this embodiment, the PMD compensator 810 RX 1102 containing the computer 1110 from the receiver to the control circuit 840 of the apparatus 100, the RX a receiver 1110, processor-based control circuit 840 and to the back. 在接收器中的tThe光感测器RX 11610把光学信号转换成一个电力有关探测器信号。 tThe RX 11610 put the light sensor of the optical signal in the receiver into a power-related signal detector. 这探测器信号指向,这然后在进入anythe误差修正circuitchips之前进入少量-误差率(BER)发现线路或薄片。 This point detector signal, which then enters the small amount of error correction before entering anythe circuitchips - error rate (BER) found lines or sheet. 当时的BER数据进入以微处理器为基础的电子的线路8340之内被喂教调整使最小BER的输入泡的计算机310。 BER was fed data into the computer 310 is taught in the microprocessor-based electronic circuit 8340 is adjusted to minimize the BER input bubbles. 当BER被使最小时,PMD有效地被补整。 When the minimum BER is enabled, PMD effectively fill the whole.

[0054] 在图116B,PMD补整能藉由使用当做PMD补整的回给因被一般承认的光学WDM 信号而传达的射频明暗被实现。 [0054] In FIG. 116B, PMD can make whole PMD as to make the whole back due to the optical WDM signal is generally recognized in the communicated RF is implemented by using shading. 在这一个方案中,在系统的发射器边上的光学发射器RXsl0510在光学上WDM上重叠射频明暗信号。 In this embodiment, the optical transmitter in the transmitter side of the system RXsl0510 shading superimposed RF signals on optical WDM. 在接收器中的光感测器RX 10610把光学信号转换成电力有关信号,而且它的频谱在特定的周率被分析。 In the photo sensor receiver RX 10610 converts the optical signal into a power-related signal and its spectrum is analyzed in a particular Duty Cycle. 在这些周率的射频权力光纤连接的组合PMD效果和PMD来源是指示的。 PMD effect and PMD in the combination of these sources of RF power Zhoushuai optical fiber connector is indicated. 当时的标准的射频权力被喂回到以微处理器为基础的电子的线路840,以便线路840能教计算机810调整被输入的泡到使最小或取射频明暗的动力最大值。 Standard RF power was fed back to the microprocessor-based electronic circuit 840 so that circuit 840 can teach the computer 810 to adjust the input to minimize foam or to take maximum radio frequency power of light and dark.

[0055] 上述的技术能被用来装配与一个偏振一起将PMD来源最佳化的数传三之意思态偏振旋转器或者以被描述的不连续态偏振旋转器为基础的其他设计在和上面在各种不同的落实方面,为PMD相关的测试和测量达成一或较多特征。 Other designs [0055] The mounting technique can be used with a polarized source with the PMD of the best means of three-state data transmission polarization rotators or polarization rotation in a discontinuous state is described on the basis of the above in various aspects of the implementation, to achieve one or more characteristics related to PMD test and measurement. 举例来说,高度精密度和高度重复性PMD世代能从每个三之意思态旋转器的高度可重复旋转装置角被获得。 For example, highly precise and highly reproducible means of PMD generation state from each of the three rotators highly reproducible means of rotation angle is obtained. 举例来说,像是装置能完全地发生729不同的PMD态,其中他们中的64个是D⑶,192是波长独立的第二个次序PMD (SOPMD),而且其余者是波长受扶养者PMD。 For example, such means can take place completely different PMD state 729, wherein 64 of them are D⑶, 192 is independent of the wavelength of the second order PMD (SOPMD), and the rest were PMD is wavelength dependent. 使用人能选择anyAnyPMD态之一能与高重复性一起选择,或扫描PMD的继续任何子集和被定义时间间隔的使用人说。 One can use to select one anyAnyPMD state can be selected with high reproducibility, or any subset of the scan continues and PMD were used in the defined time interval, he said. 如此的一个装置能被用来以一个高速,举例来说发生被需要的PMD,大约Ims或由于三之意思的高速操作比较不态偏振旋转器。 Such a device can be used at a high speed, for example PMD occurred is required, or for about three Ims means of high speed operation of the polarization rotator less state. 高速操作能加速PMD宽容测试而且能被用来测试对抗突然的PMD变化的PMD补偿器的回应时间。 High-speed operation can accelerate the PMD tolerance testing and can be used to test the response time against a sudden change of PMD PMD compensator. 对于另外的一个例,如此的一个装置也能被用来自动地将输入最佳化偏振为这最坏的事情_箱第一次序和第二个次序PMD宽容测试,不管迅速的输入偏振变化。 For another one case, such a device can also be used to automatically optimize the input polarization for this worst case _ a first order and second order PMD tolerance test, regardless of the input polarization change rapidly . 偏振最佳化能除去测试不确定性而且能重要地减少必需完成测试的时间。 Test polarization optimization can remove uncertainty and can significantly reduced the time required to complete the test. 如此的特征对系统厂商的无线电收发机生产线的PMD宽容测试是有益的。 Such features PMD tolerance test system vendors line transceiver is beneficial. 对于另外的一个例,如此的一个装置能被用来提供PMD补整或将PMD价值最佳化或者使用人选择了PMD价值。 For another one case, such a device can be used to provide the entire complement PMD or PMD value or the user selects the best of the PMD value. PMD补整藉由取在输出口被偏光计发现的DOP最大值被完成。 Taken up by the whole PMD maximum DOP polarimeter output is found to be complete. PMD和DOP价值将会在 PMD and DOP values ​​will

18前面嵌板上被显示IXD展览。 18 is displayed on the front panel shows IXD. 藉由走PMD上下地评价而且审查被DOP价值最大值的,使用人能直接地见到被选择的PMD价值如何影响PMD补整。 By walking up and down the PMD evaluation and review of the maximum, using one can directly see the PMD value of the selected DOP how it affects the value of PMD fill whole. 当选择将PMD模最佳化,仪器将会去过所有PMD态而且寻找最大DOP。 When selecting the optimal mode of PMD, PMD instruments will have been to all states and to find the maximum DOP. PMD态用最大DOP当做PMD补整的被PMD最佳化的被选择。 PMD PMD up state as a whole is optimized PMD is selected by the maximum DOP.

[0056] 提及FIGS。 [0056] mentioned FIGS. 510,6A 11—和6B11B,因为对于PMD补整的被PMD价值最佳化的接近光纤连接的PMD价值,所以如此的一个装置能被用来决定一个服勤中光纤连接的PMD价值。 510,6A 11- and 6B11B, because for the entire complement PMD PMD value is optimized value close PMD optical fiber connection, so that such a device can be used to determine a value of the PMD of the optical fiber connector black coat. 因此,为了要决定光纤连接的PMD价值,一个被将PMD来源最佳化的偏振能被用来促使PMD 补整功能。 Accordingly, in order to decide the value of PMD of the optical fiber connector, a preferred source of PMD is the polarization can be used to promote complement PMD whole function. 在LCD展览上被显示的被PMD最佳化的当时是连杆的PMD价值。 PMD is the best of the link PMD value at that time is displayed on the LCD exhibitions. 一也可能想要发现一个特别信道的theThe PMD状态在一个服勤中的ROADM网络中定路线能被测量在看的40G发射器和接收器的装置为40G操作决定它的可行性之前。 One may want to find a particular channel theThe PMD ROADM network in a state of in-service measurement before it can be routed feasibility apparatus 40G transmitter and receiver is determined as viewed 40G operation. 在如此的一种情形中,一个ASE来源,一个用以被扩大的自然的排放物(ASE)为基础的宽广的光谱范围(举例来说, 白的光)发出光的轻的来源,可能在发射器端和一个被将PMD来源最佳化的偏振被用能在接收器端被用运行PMD补整。 In such a case, an ASE source, is enlarged to a natural emissions (ASE) based on a wide spectral range (for example, white light) emitted light of the light source may be a transmitter end and the PMD is the polarization is the best source of energy at the receiver end is integral with a fill operation PMD. 被PMD最佳化的价值如此是光纤路径的PMD价值。 PMD value is optimized so that PMD value of the optical fiber path. 藉由在这PMD数据上的信息,它能被决定是否路径适合40G传动,而且是否一个PMD补偿器被需要。 With this information the data PMD, it is determined whether or 40G path for transmission, and if a PMD compensator is needed. 在落实中,像Er吸毒者的光纤ampIifierAn (EDFA)这样的一个光学放大器,可能被用在PMD 来源之前提高信号水平。 In implementation, the addicts as Er fiber ampIifierAn (EDFA) such an optical amplifier may be used to improve the signal level before PMD source.

[0057] 对于另外的一个例,被揭露的以FIGS中的设计为基础的PMD装置。 [0057] For one embodiment of additional, PMD in FIGS device is based on the design disclosed. 1_5能作为系统损害诊断。 1_5 can damage diagnosis as a system. 在一个与运转问题的光纤连接中,它能很困难无论是否它是一个PMD起因,一个彩色色散起因(激光唱碟),决定问题的因素一个信号_到_噪音(SNR)起因、或约其他起因。 In a fiber optic connection with the operation of the problem, it can be difficult regardless of whether it is a PMD cause, a cause of color dispersion (CDs), factors that determine the issue of a signal _ _ to noise (SNR) cause, or about other causes . 展示的PMD补整能帮助找outbe被用来决定问题是否由PMD所引起。 PMD fill the entire display can be used to help find outbe determine whether the problem is caused by PMD. 关于这一点, PMD补整解决传动问题,这指示PMD是因素。 In this regard, PMD fill the entire drive to solve the problem, which indicates that PMD is a factor. 另外,PMD可能不是一个起因。 In addition, PMD may not be a cause. 藉由如此的一种诊断,它可能是被决定的PMD补整是否为光纤连接被需要。 With such a diagnosis, it may be decided to fill the entire PMD whether the need for the fiber connection.

[0058] 现在PMD来源的另一个应用是PMD仿真。 [0058] Another application now PMD PMD is a source of emulation. 规画PMD发电机能发生统计的PMD分布在光纤系统中效法PMD变化。 PMD PMD generator planning can take place in the statistical distribution of fiber optic systems emulate PMD change.

[0059] 此外,偏振控制功能能在一些落实方面被提供。 [0059] In addition, the polarization control function can be provided in some aspects of the implementation. 这建立_在偏振控制器中和偏光计能被控制作预定表仪器为各种不同的偏振控制功能,包括决定论的泡世代、偏振攀缘和偏振痕迹世代。 _ This establishes the polarization controller and the polarization can be controlled as a predetermined count table for a variety of different polarization instrument control functions including the bubble generation determinism, climbing polarization and polarization traces of generations. 因此,当所有偏振控制的一般用途偏振合成器I控制器需要时,仪器能被用。 Thus, when all the general purpose polarization control the polarization controller needs combiner I, the instrument can be used.

[0060] 偏振最佳化能藉由在这一份文件中使用PMD来源被运行。 [0060] polarization optimization can be run by using a PMD source in this document. 举例来说,在D⑶宽容测试中,输入泡能藉由使用泡_当做由DGD所引起的最坏的信号降格的回给被第一个偏光计发现被最佳化。 For example, in D⑶ tolerance test, back to enter the foam can be optimized is the first found by using a polarimeter as a bubble _ worst signal degradation that is caused by DGD. 对于另外的一个例,在PMD宽容测试中,输入泡能藉由使最小DOP-当做由DGD和SOPMD所引起的最坏的信号降格的回给被第二个偏光计发现被最佳化。 For another one embodiment, the PMD tolerance in the test, the bubble can be input as DOP- minimize DGD and the worst by the signal degradation that is caused SOPMD back to a second polarimeter is found to be optimized. 对于仍然另外例,在PMD补整,这输入泡能藉由取DOP-为由D⑶和SOPMD所引起的最少的信号降格被第二个偏光计发现最大值被最佳化。 For still further embodiment, the PMD whole complement, which enter the bubble can be taken by D⑶ DOP- downgrade SOPMD and minimal signal caused by a second maximum is found polarimeter is optimized.

[0061] 图。 [0061] FIG. 被装备PMD监听和PMD补整的12和13场展示两个可仿效的光学沟通制度在上面描述。 The entire complement of equipment and monitor PMD PMD 12 and 13 show two games to emulate optical communication system described above.

[0062] 图12展示光纤沟通在信号发射器提供一个可调的疏导ASE来源1210在不同的WDM信道波长考虑到测量PMD的制度1200。 [0062] FIG. 12 shows an optical fiber communication providing an adjustable divert ASE source 1210 at different WDM channel wavelengths taking into account the PMD measurement system 1200 in the signal transmitter. 可调的疏导ASE来源1210能用一个线性的偏振生产WDM信道波长的在任何的光学测试信号。 Adjustable grooming ASE source 1210 can be any of a linear optical test signal in the WDM channel wavelengths polarization produced. 这个光学测试信号对光纤系统1200的接收器边透过信号被指示传动一个光学WDM信号的路径,包括WDM多工器1020和与PMD的光纤连接1040。 This optical test signal to the receiver side of the optical system 1200 is instructed to the transmission path of a WDM signal transmitted through the optical signal, comprising a WDM multiplexer 1020 and 1040 are connected with an optical fiber PMD. 同样地,这个光学测试信号的PMD能反映系统的实际PMD。 Likewise, the PMD of the optical test signal reflect the actual PMD system. 可调的疏导ASE 来源1210含ASE光来源1212,和过滤轻的来源1212的光传输的可调的光学过滤器1214光在任何WDM波长之一,举例来说,ITU WDM被国际电信联合会(ITU)用以ITU规格为基础的一个带宽指定的波长.(举例来说,0.2个nm至0.3个nm) —个光学放大器1216可能被用来扩大传动可调的光学过滤器1214的光。 ASE sources adjustable divert ASE light source 1210 containing source 1212, and a filter transmitting light of the optical tunable optical filter 12141212 WDM light at any one wavelength, for example, the ITU is the International Telecommunication Union WDM ( ITU) specification ITU wavelength for the bandwidth based on a specified (for example, 0.2 nm to 0.3 nm) -. optical amplifier 1216 may be used to increase the transmission optical tunable optical filter 1214. 一个光学偏光器1218能被用来确定指向WDM多工器1020的光学上测试信号的适当线性偏振。 An optical polarizer 1218 can be used to determine the appropriate point on the linear polarization multiplexer 1020 WDM optical test signal.

[0063] 一个光学联结器1220在系统的接收器边被提供而且被向上游对WDM解双工器1030位于分离部分这光被一般承认的被WDM解双工器1030走开当一个光学监视器向1222 作信号哪一个含有光学上测试信号的光。 [0063] An optical coupler 1220 is provided in the receiver side of the system and is located upstream of the separating section 1030 duplexer this solution WDM light is generally recognized WDM solution when a duplexer 1030 off optical monitor to 1222 for which a signal light containing optical test signal. 一个可调的光学过滤器1230被加倍受到光学监视器信号1222而且生产一个被过滤的光学监视器信号1232。 A tunable optical filter 1230 is doubled by the optical monitor signal 1222 and producing a filtered signal optical monitor 1232. 可调的光学过滤器1230被调节到可调光学过滤器1214的相同的WDM波长。 Tunable optical filter 1230 is adjusted to the same wavelength tunable optical filter for WDM 1214. 被过滤的光学监视器当时向1232作信号转入一个以FIGS的装置之一为基础的PMD仪器1201。1_5,像是在FIGS的PMD装置800, 1101和1102。10,11 一和11个B。 The optical monitor was filtered into a one to FIGS PMD apparatus based instruments for signal 1201.1_5 to 1232, such as in FIGS PMD apparatus 800, 1101, and 11 B and a 1102.10,11 . 在运转,可调的过滤器1214和1230能被调节到WDM信道波长的任何测量分别WDM信道的PMD特性,以便多个WDM信道的PMD特性能在不同时间被测量。 In operation, the tunable filters 1214 and 1230 can be adjusted to any WDM channel wavelengths measuring PMD characteristic of WDM channels, respectively, to the plurality of PMD characteristic of the WDM channels can be measured at different times.

[0064] 图13展示光纤沟通在接收器边提供一个可调的光学过滤器考虑到选择不同WDM 的任何信道波长为挑选的WDM信道生产一个光学监视器信号的制度1300。 [0064] FIG. 13 shows an optical fiber communication providing a tunable optical filter for taking into account any channel select different WDM wavelengths of the optical monitor signal is a production system 1300 is selected WDM channels at the receiver side. 在这一个系统的接收器边,光学联结器1220同样地被向上游对WDM解双工器1030位于分离部分这光被一般承认的被WDM解双工器1030走开当一个光学监视器向1222作信号哪一个含有所有WDM 的光信道。 In this system the receiver side, the optical coupler 1220 is likewise positioned upstream of the separation section 1030 duplexer this solution WDM light is generally recognized WDM solution off the duplexer 1030 to the monitor 1222 when one optical as a signal which contains all of WDM optical channels. 可调的光学过滤器1230被用来过滤生产一个被过滤的含有一个挑选WDM信道的光的光学监视器信号的光学监视器信号1222。 Tunable optical filter 1230 is used to produce filtered light comprising a WDM optical channel selection optical monitor signal monitor signal a filtered 1222. 可调光学过滤器1230的调谐允许多个WDM 信道的PMD特性在不同时间被测量。 Tuning tunable optical filter 1230 allows multiple WDM channel PMD characteristics are measured at different times. 在这设计之下,实际WDM信道信号作为PMD测量,而且在图12的可调的疏导ASE来源1210被除去。 Under this design, the actual WDM channel signal as a PMD measurement, and is removed in FIG. 12 grooming adjustable ASE source 1210.

[0065] 在FIGS用的系统设计。 [0065] In the design system with FIGS. 第12和第13种使用一个PMD仪器1201连接在一指定光学监听信号路径藉由使用一个可调的光学过滤器1230来每次选择一个分别的WDM信道检测所有信道的PMD。 12 and 13, a PMD kinds connecting apparatus 1201 by using a tunable optical filter 1230 for selecting one of each of the WDM channels detected PMD of all channels in a specified optical path monitoring signal. 这些设计在所有WDM信道为PMD监听以相同的PMD仪器1201的分享为基础而且如此除去对下游地从WDM DeMUX 1030把PMD仪器1201连结到每一条多条光学WDM路径的需要。 In all of these designs is the PMD monitor WDM channels to share the same instrument PMD 1201 and so needs to be removed based on the downstream link from the instrument WDM DeMUX 1030 PMD 1201 to put each of the plurality of WDM optical paths.

[0066] 这一份文件含有许多特性,不过这些不应该被解释当在发明的范围方面的限制或者什么可能被要求,但是宁可当做对发明的特别具体化来说的特征特性的描述。 [0066] This document contains many features, but these should not be construed as limiting the scope of the invention or of what may be required, but rather as descriptions of features specific characteristics of the invention it is particularly the. 也在分开具体化的背景的这一份文件中被描述的特定的特征能在一个具体化中的结合被实现。 This particular feature separate document also embodied in the context described herein can be embodied in a binding is realized. 相反地,在具体化的背景被描述的各种不同的特征也分开地或在任何适当的次结合中能在多个具体化中被实现。 Conversely, various features are also embodied separately in the context of the various described can be implemented or embodied in a plurality of times in any suitable Combination. 而且,虽然特征当做在特定的结合行动可能在上面被描述而且甚至最初同样地要求,被宣称的结合能在某些情况从结合被货物税,被宣称的结合可能指向一个次结合或次结合的一个变动的一或者较多特征。 Moreover, although features as a particular combination of actions may be described in the above requirements and even initially Likewise, the binding energy was declared a sub-combination or sub-combinations in some cases from the combination of the excise tax, may be declared binding points a change of one or more features.

[0067] 只有一些例子和落实被描述。 [0067] Only a few examples and implementation are described. 然而,被描述的被在这一份文件被描述而且说明之上建立的落实和其他落实能被铺的变化、修正和提高。 However, the description of which is described in a document on the establishment and implementation of instructions and implement other changes that can be spread, amend and improve.

Claims (51)

  1. 1. 一种光学器件,其特征在于,包括以下部分:一组的差分群延迟部分,每个部分使一束光的两个正交偏振态使光通过光双折射完成一个DGD,每个DGD部分沿光的传播方向间隔排列;一组可调光偏振方向旋转器,其放置在DGD之间的空位中,一个可调光偏振方向旋转器的每个缺口使经过一个D⑶后进入下一个D⑶之前的光的偏振方向发生变化,每个可调光偏振方向旋转器受外部控制信号的调节,可以产生三种不同的偏振旋转;一个控制单元用以和可调光偏振方向旋转器进行通信,以单独控制各个可调光偏振方向旋转器产生三种不同的偏振旋转之一的一种,用以使经过DGD部分和可调光偏振方向旋转器的光产生一阶或高阶偏振模色散。 An optical device, characterized by comprising the following parts: a set of differential group delay parts, each of the two orthogonal polarization states of the light beam of light through a birefringent DGD completed, each DGD arranged along the propagation direction of the optical portion of the spacer; a set of adjustable light polarization direction rotator, which is placed in the space between the DGD, a polarization direction rotator tunable optical notch so that after each of the next one D⑶ a D⑶ before the polarization direction of light changes the polarization direction of each of the tunable optical rotator regulated by an external control signal can be generated in three different polarization rotation; and a control unit for the tunable optical communication polarization direction rotator, separately controlling the respective tunable light to a polarization direction rotator produces a polarization rotation of one of three different, DGD for causing light generation portion through the light polarization direction and adjustable rotator is a first or higher order PMD.
  2. 2.如权利要求1所述器件,其特征在于: 每个可调光偏振方向旋转器具体包括:两个双状态的可调光偏振方向旋转器沿光传播方向放置,每个双状态的可调光偏振方向旋转器可以单独调节,用以改变通过光的一阶旋转角度和在一阶旋转角度相反方向的二阶等效旋转角度之间的偏振旋转角度;控制单元可以控制两个双状态的光偏振方向旋转器共同产生三种不同的偏振旋转。 2. The device as claimed in claim 1, wherein: each tunable light polarization direction rotator comprises: a dimmable polarization direction rotator disposed along the optical propagation direction of the two pairs of states, each can be a two-state dimming polarization direction rotator can be individually adjusted to change the rotation angle of first-order light and the polarization rotation through an angle between the rotation angle of the second order equivalent to the rotational angle of the first order opposite direction; the control unit may control the state of the two pairs rotating the polarization direction of light collectively to generate three different polarization rotation.
  3. 3.如权利要求2所述器件,其特征在于:每个双状态的光偏振方向旋转器由磁电偏振方向旋转器组成。 The device as claimed in claim 2, wherein: each of the light polarization direction of the rotating dual magnetic states by the direction of rotation of the polarization components.
  4. 4.如权利要求2所述器件,其特征在于:每个双状态的光偏振方向旋转器,其中一阶旋转角度为+22. 5°,二阶相反的旋转角度为-22. 5°。 4. The device as claimed in claim 2, wherein: each of the light polarization direction rotator two-state, wherein a rotation angle of the order of +22 5 °, a second order opposite to the rotation angle of -22 5 °...
  5. 5.如权利要求2所述器件,其特征在于:控制部分使在每个光偏振方向旋转器中的两个双状态的光偏振方向旋转器(1)均旋转一阶偏振角度(2)分别旋转一阶偏振角度和二阶偏振角度(3)均旋转二阶偏振角度。 5. The device as claimed in claim 2, wherein: the control portion rotating the polarization direction of the light in the light polarization direction of each of the two pairs of rotators in the state (1) are first order polarization angle of rotation (2), respectively order polarization rotation angle and a second order polarization angle (3) are second order polarization rotation angle.
  6. 6.如权利要求1所述器件,其特征在于:DGD部分各自长度不同,用以产生不同的DGD值。 The device as claimed in claim 1, wherein: portions of different respective lengths DGD for generating different DGD values.
  7. 7.如权利要求1所述器件,其特征在于:D⑶部分的长度相差为2倍或2m倍,其中m为整数。 7. The device as claimed in claim 1, wherein: the length difference D⑶ ​​portion 2m times or 2 times, where m is an integer.
  8. 8.如权利要求6所述器件,其特征在于:每个DGD部分均可调节,其可根据控制信号可以产生不同的DGD值; 控制部分和DGD部分进行通信,用以单独控制各个DGD部分的产生的DGD值。 8. The device as claimed in claim 6, wherein: each DGD section can be adjusted, which may produce different DGD value according to a control signal; DGD control portion and a communication part for controlling the respective individual portions DGD DGD value generated.
  9. 9.如权利要求1所述器件,其特征在于:还包括以下部分:一个输入偏振态控制器在DGD部分和可调光偏振方向旋转器的上游,接收输入光控制输入光的偏振态;一个输入检偏器在DGD部分和可调光偏振方向旋转器的上游,输入偏振态控制器的下游,用以测量经输入偏振态控制器后的输入光的偏振态;一个输出检偏器在DGD部分和可调光偏振方向旋转器的下游,用以测量经DGD部分和可调光偏振方向旋转器后的光的偏振态;其中控制部分基于测量的输入和输出光偏振态至少控制一个(1)输入偏振态控制器和(2)可调光偏振方向旋转器。 9. The device as claimed in claim 1, characterized in that: further comprising the following parts: a DGD input polarization state controller and the upstream portion of the tunable optical polarization direction rotator, a control input receiving an input light polarization state of light; a input analyzer upstream portion and adjustable DGD light polarization direction rotator downstream input polarization state controller, to measure the polarization state of light input by the input polarization state controller; an output analyzer in the DGD part of the downstream direction and adjustable light polarization rotator, and the portion for measuring the DGD through the tunable optical polarization direction of the light polarization rotator; wherein the control part based on the measured input and output optical polarization state control at least one (1 ) and the input polarization state controller (2) dimmable polarization direction rotator.
  10. 10.如权利要求9所述器件,其特征在于,还包括以下部分: 一个光探测器用以探测输出检偏器的光;一位的误码率监测器,用以测量光探测器输出地一位误码率; 一个反馈控制单元,向控制部分提供一个基于测量到的探测器输出的一位误码率的反馈信号,其中控制部分根据反馈信号至少控制一个(1)输入偏振态控制器和(2)可调光偏振方向旋转器用以减少输出光的一位误码率。 10. The device as claimed in claim 9, characterized by further comprising the following parts: a photodetector for detecting the light output of the analyzer; an error rate monitor for measuring the output of a photodetector bit error rate; a feedback control unit provided to the control part based on a feedback signal of the measured bit error rate detector output, wherein the control section controls at least one feedback signal in accordance with (1) and the input polarization state controller (2) the direction of light polarization rotator adjustable to reduce an error rate of the output light.
  11. 11.如权利要求10所述器件,其特征在于:每个DGD部分均可调节,其可根据控制信号可以产生不同的DGD值; 控制部分和DGD部分进行通信,用以单独控制各个DGD部分的产生的DGD值,其根据反馈的控制信号至少控制(1)输入偏振态控制器和(2)可调光偏振方向旋转器。 11. The device as claimed in claim 10, wherein: each DGD section can be adjusted, which may produce different DGD value according to a control signal; DGD control portion and a communication part for controlling the respective individual portions DGD DGD value generated, which (1) the input polarization state controller and (2) the polarization direction of the rotary tunable optical feedback controlled based on a control signal at least.
  12. 12.如权利要求9所述器件,其特征在于:每个DGD部分均可调节,其可根据控制信号可以产生不同的DGD值; 控制部分和DGD部分进行通信,用以单独控制各个DGD部分的产生的DGD值。 12. The device as claimed in claim 9, wherein: each DGD section can be adjusted, which may produce different DGD value according to a control signal; DGD control portion and a communication part for controlling the respective individual portions DGD DGD value generated.
  13. 13.如权利要求12所述器件,其特征在于:控制部分根据测量得到的输入和输出偏振态至少控制DGD部分和光偏振方向旋转器之一。 13. The device as claimed in claim 12, wherein: the control section controls at least one polarization state and a light portion DGD rotating the polarization direction according to the measured input and output.
  14. 14.如权利要求1所述器件,其特征在于:一个输入偏振态控制器在DGD部分和可调光偏振方向旋转器的上游,接收输入光控制输入光的偏振态;一个输出检偏器在DGD部分和可调光偏振方向旋转器的下游,用以测量经DGD部分和可调光偏振方向旋转器后的光的偏振态;其中控制部分基于测量的输入和输出光偏振态至少控制一个(1)输入偏振态控制器和(2)可调光偏振方向旋转器。 14. The device as claimed in claim 1, wherein: a DGD input polarization state controller and the upstream portion of the tunable optical polarization direction rotator, a control input receiving an input light polarization state of light; an output analyzer in DGD downstream portion and the tunable optical polarization direction rotator, and the portion for measuring the DGD through the tunable optical polarization direction of the light polarization rotator; wherein the control part based on the measured input and output optical polarization state control at least one ( 1) the input polarization state controller and (2) the tunable optical polarization direction rotator.
  15. 15.如权利要求1所述器件,其特征在于,还包括以下部分:一个输入偏振态控制器在DGD部分和可调光偏振方向旋转器的上游,接收输入光控制输入光的偏振态;一个光探测器用以探测经DGD部分和可调光偏振方向旋转器的输出光; 一位的误码率监测器,用以测量光探测器输出的一位误码率; 一个反馈控制单元,向控制部分提供一个基于测量到的探测器输出的一位误码率的反馈信号,其中控制部分根据反馈信号至少控制一个(1)输入偏振态控制器和(2)可调光偏振方向旋转器用以减少输出光的一位误码率。 15. The device as claimed in claim 1, characterized by further comprising the following parts: a DGD input polarization state controller and the upstream portion of the tunable optical polarization direction rotator, a control input receiving an input light polarization state of light; a a light detector for detecting light output by the tunable optical DGD portion and a polarization direction rotator; an error rate monitor for measuring the photodetector output bit error rate; a feedback control unit to the control section provides a feedback signal based on a measured bit error rate of the detector output, wherein a control section (1) and the input polarization state controller (2) the tunable optical filter to reduce the polarization direction of the rotary control according to the feedback signal at least a bit error rate of the output light.
  16. 16.如权利要求1所述器件,其特征在于,还包括以下部分:一个输入偏振态控制器在DGD部分和可调光偏振方向旋转器的上游,接收输入光控制输入光的偏振态;一个光探测器用以探测经DGD部分和可调光偏振方向旋转器的输出光; 一个反馈控制单元,对光探测器的输出进行处理以提取输入光束携带的射频铃声的光谱信息,控制控制部分至少控制一个(1)输入偏振态控制器和(2)可调光偏振方向旋转器用以使提取出的射频铃声最大或最小以减小输出光的一位误码率。 16. The device as claimed in claim 1, characterized by further comprising the following parts: a DGD input polarization state controller and the upstream portion of the tunable optical polarization direction rotator, a control input receiving an input light polarization state of light; a a light detector for detecting light output by the tunable optical DGD portion and a polarization direction rotator; a feedback control unit, the light outputs of the detectors are processed to extract the spectral information of the input light beams carrying radio frequency ringing, control section controls at least a (1) and the input polarization state controller (2) dimmable polarization direction rotator for causing the extracted maximum or minimum RF tones to reduce an error rate of the output light.
  17. 17. 一个波分复用(WDM)的通信单元装置,其特征在于,包括以下部分:一个WDM解复用器,从不同的信号路径和WDM波长中分离出WDM信号; 一组光接收器各自位于不同的信号路径位置,每个光接收器在一个WDM波长接受一个光WDM信号,以提取接受的光WDM信号携带的数据;其中每个光接收器包括一个偏振模色散补偿器,其包括:一组差分群时延(DGD)部分,每个部分使一束光的两个正交偏振态使光通过光双折射完成一个DGD,每个DGD部分沿光的传播方向间隔排列;一组可调光偏振方向旋转器,其放置在DGD之间的空位中,一个可调光偏振方向旋转器的每个缺口使经过一个D⑶后进入下一个D⑶之前的光的偏振方向发生变化,每个可调光偏振方向旋转器受外部控制信号的调节,可以产生三种不同的偏振旋转;一个控制单元用以和可调光偏振方向旋转器进行通信,以单 17. a wavelength division multiplexing (WDM) communication apparatus unit, characterized in that it comprises the following parts: a WDM demultiplexer, WDM signal separated from the WDM signal path and different wavelengths; a plurality of light receivers each located at different positions the signal path, each light receiver receiving a WDM wavelength in a WDM optical signal to the optical WDM signal carrying the received data extraction; wherein each optical receiver includes a polarization mode dispersion compensator, comprising: a set of differential group delay (DGD) portions, each of the two orthogonal polarization states of the light beam of light through a birefringent DGD is completed, the direction of propagation of light along each DGD portion spaced; a set of dimming direction of polarization rotator disposed in the space between the DGD, a polarization direction rotator tunable optical notch so that after each D⑶ a polarization direction of light entering the next D⑶ before change, each of which may dimming is regulated by rotating the polarization direction of the external control signal may be generated in three different polarization rotation; and a control unit for the tunable optical polarization direction rotator communicate with a single 控制各个可调光偏振方向旋转器产生三种不同的偏振旋转之一的一种,用以使经过DGD部分和可调光偏振方向旋转器的光产生偏振模色散,以使接受的WDM信号和PMD无关。 Controlling the polarization direction of each of the tunable optical filter to produce a rotation of one of three different polarization rotation, for causing the light passing through the tunable optical DGD portion and a polarization direction rotator polarization-mode dispersion is generated, so that the received WDM signal and independent of PMD.
  18. 18.如权利要求17所述的装置,其特征在于: 每个可调光偏振方向旋转器由以下部分组成:两个双状态的可调光偏振方向旋转器沿光传播方向放置,每个双状态的可调光偏振方向旋转器可以单独调节,用以改变通过光的一阶旋转角度和在一阶旋转角度相反方向的二阶等效旋转角度之间的偏振旋转角度;控制单元可以控制两个双状态的光偏振方向旋转器共同产生三种不同的偏振旋转。 18. The apparatus according to claim 17, wherein: each tunable light polarization direction rotator consists of: tunable light polarization direction rotator disposed along the light propagation direction of the two pairs of states, each double adjustable light polarization direction of the rotational state can be individually adjusted to change the rotation angle of first-order light and the polarization rotation through an angle between the rotation angle of the second order equivalent to the rotational angle of the first order opposite direction; the control unit may control two direction of light polarization rotator dual states together produce three different polarization rotation.
  19. 19.如权利要求18所述的装置,其特征在于:每个双状态的光偏振方向旋转器由磁电偏振方向旋转器组成。 19. The apparatus according to claim 18, wherein: each of the light polarization direction rotator is rotated by the two-state polarization direction of the magnetic components.
  20. 20.如权利要求18所述的装置,其特征在于:每个双状态的光偏振方向旋转器,其中一阶旋转角度为+22. 5°,二阶相反的旋转角度为-22. 5°。 20. The apparatus according to claim 18, wherein: each of the light direction of the double polarization rotator state, wherein a rotation angle of the order of +22 5 °, a second order opposite to the rotation angle of -22 5 °.. .
  21. 21.如权利要求18所述的装置,其特征在于:控制部分使在每个光偏振方向旋转器中的两个双状态的光偏振方向旋转器(1)均旋转一阶偏振角度(2)分别旋转一阶偏振角度和二阶偏振角度(3)均旋转二阶偏振角度。 21. The apparatus according to claim 18, wherein: the control portion rotating the polarization direction of the light in the light polarization direction of each of the two pairs of rotators in the state (1) are first order polarization angle of rotation (2) order polarization rotation angle, respectively, and a second order polarization angle (3) are second order polarization rotation angle.
  22. 22.如权利要求17所述的装置,其特征在于: DGD部分各自长度不同,用以产生不同的DGD值。 22. The apparatus according to claim 17, wherein: portions of different respective lengths DGD for generating different DGD values.
  23. 23.如权利要求22所述的装置,其特征在于:D⑶部分的长度相差为2倍或2m倍,其中m为整数。 23. The apparatus according to claim 22, wherein: the length difference D⑶ ​​portion 2m times or 2 times, where m is an integer.
  24. 24.如权利要求22所述的装置,其特征在于:每个DGD部分均可调节,其可根据控制信号可以产生不同的DGD值; 控制部分和DGD部分进行通信,用以单独控制各个DGD部分的产生的DGD值。 24. The apparatus according to claim 22, wherein: each DGD section can be adjusted, which may produce different DGD value according to a control signal; DGD control portion and a communication part for individually controlling each section DGD the DGD value generated.
  25. 25.如权利要求17所述的装置,其特征在于: 每个光接收器有以下几部分组成:一个输入偏振态控制器在DGD部分和可调光偏振方向旋转器的上游,接收输入光控制输入光的偏振态;一个输入检偏器在DGD部分和可调光偏振方向旋转器的上游,输入偏振态控制器的下游,用以测量经输入偏振态控制器后的输入光的偏振态;一个输出检偏器在DGD部分和可调光偏振方向旋转器的下游,用以测量经DGD部分和可调光偏振方向旋转器后的光的偏振态;其中控制部分基于测量的输入和输出光偏振态至少控制一个(1)输入偏振态控制器和(2)可调光偏振方向旋转器。 25. The apparatus according to claim 17, wherein: each of the optical receiver has the following components: a DGD input polarization state controller and the upstream portion of the tunable optical polarization direction rotator receives input light control input light polarization state; a DGD input analyzer at the upstream portion and the tunable optical polarization direction rotator downstream input polarization state controller, via the input light to measure the state of polarization of the polarization state controller; a DGD output analyzer in the downstream portion and the tunable optical polarization direction rotator, for measuring the polarization state of light after the light through an adjustable DGD portion and a polarization direction rotator; wherein the control section based on the input and output light measurement at least a polarization state control (1) and the input polarization state controller (2) dimmable polarization direction rotator.
  26. 26.如权利要求25所述的装置,其特征在于: 每个光接收器有以下几部分组成:一个光探测器用以探测输出检偏器的光; 一位的误码率监测器,用以测量光探测器输出地一位误码率; 一个反馈控制单元,向控制部分提供一个基于测量到的探测器输出的一位误码率的反馈信号,其中控制部分根据反馈信号至少控制一个(1)输入偏振态控制器和(2)可调光偏振方向旋转器用以减少输出光的一位误码率。 26. The apparatus according to claim 25, wherein: each of the optical receiver has the following components: a light detector for detecting light output of the analyzer; an error rate monitor for measuring the photodetector output to an error rate; a feedback control unit provided to the control part based on a feedback signal a measured error rate detector output, wherein the control portion of the feedback control signal in accordance with at least one (1 ) input polarization state controller and (2) the direction of light polarization rotator adjustable to reduce an error rate of the output light.
  27. 27.如权利要求26所述的装置,其特征在于:每个DGD部分均可调节,其可根据控制信号可以产生不同的DGD值; 控制部分和DGD部分进行通信,用以单独控制各个DGD部分的产生的DGD值,其根据反馈的控制信号至少控制(1)输入偏振态控制器和(2)可调光偏振方向旋转器; 27. The apparatus according to claim 26, wherein: each DGD section can be adjusted, which may produce different DGD value according to a control signal; DGD control portion and a communication part for individually controlling each section DGD the resulting DGD value, a feedback control signal which controls at least according to (1) control the input polarization state, and (2) the tunable optical polarization direction rotator;
  28. 28.如权利要求25所述的装置,其特征在于:每个DGD部分均可调节,其可根据控制信号可以产生不同的DGD值; 控制部分和DGD部分进行通信,用以单独控制各个DGD部分的产生的DGD值。 28. The apparatus according to claim 25, wherein: each DGD section can be adjusted, which may produce different DGD value according to a control signal; DGD control portion and a communication part for individually controlling each section DGD the DGD value generated.
  29. 29.如权利要求28所述的装置,其特征在于:控制部分根据测量得到的输入和输出偏振态至少控制DGD部分和光偏振方向旋转器之一。 29. The apparatus according to claim 28, wherein: the control section controls at least one polarization state and a light portion DGD rotating the polarization direction according to the measured input and output.
  30. 30.如权利要求17所述的装置,其特征在于: 每个光接收器有以下几部分组成:一个输入偏振态控制器在DGD部分和可调光偏振方向旋转器的上游,接收输入光控制输入光的偏振态;一个输出检偏器在DGD部分和可调光偏振方向旋转器的下游,用以测量经DGD部分和可调光偏振方向旋转器后的光的偏振态;其中控制部分基于测量的输入和输出光偏振态至少控制一个(1)输入偏振态控制器和(2)可调光偏振方向旋转器。 30. The apparatus according to claim 17, wherein: each of the optical receiver has the following components: a DGD input polarization state controller and the upstream portion of the tunable optical polarization direction rotator receives input light control input light polarization state; a DGD output analyzer in the downstream portion and the tunable optical polarization direction rotator, for measuring the polarization state of light after the light through an adjustable DGD portion and a polarization direction rotator; wherein the control part based on measuring the input and output optical polarization state control at least one (1) control the input polarization state and (2) the tunable optical polarization direction rotator.
  31. 31.如权利要求17所述的装置,其特征在于,: 每个光接收器由以下几部分组成:一个输入偏振态控制器在DGD部分和可调光偏振方向旋转器的上游,接收输入光控制输入光的偏振态;一个光探测器用以探测DGD部分和可调光偏振方向旋转器输出的光; 一位的误码率监测器,用以测量光探测器输出的一位误码率; 一个反馈控制单元,向控制部分提供一个基于测量到的探测器输出的一位误码率的反馈信号,其中控制部分根据反馈信号至少控制一个(1)输入偏振态控制器和(2)可调光偏振方向旋转器用以减少输出光的一位误码率。 31. The apparatus according to claim 17, wherein: each of the light receiver consists of the following components: a DGD input polarization state controller and the upstream portion of the tunable optical polarization direction rotator receives input light controlling the polarization state of the input light; a light detector for detecting light and adjustable DGD portion rotating the polarization direction of the light output; an error rate monitor for measuring a bit error rate of the photodetector; a feedback control unit provided to the control part based on a feedback signal a measured error rate detector output, wherein a control section (1) and the input polarization state controller (2) adjustable in accordance with a feedback signal for controlling at least direction of light polarization rotator to reduce an error rate of the output light.
  32. 32.权利要求17所述的装置,其特征在于:每个光接收器由以下几部分组成:一个输入偏振态控制器在DGD部分和可调光偏振方向旋转器的上游,接收输入光控制输入光的偏振态;一个光探测器用以探测DGD部分和可调光偏振方向旋转器输出的光; 一位的误码率监测器,用以测量光探测器输出的一位误码率; 一个反馈控制单元,对光探测器的输出进行处理以提取输入光束携带的射频铃声的光谱信息,控制控制部分至少控制一个(1)输入偏振态控制器和(2)可调光偏振方向旋转器用以使提取出的射频铃声最大或最小以减小输出光的一位误码率。 32. The apparatus according to claim 17, wherein: each of the light receiver consists of the following components: a DGD input polarization state controller and the upstream portion of the tunable optical polarization direction rotator, a control input receiving an input light polarization state of light; a light detector for detecting light and variable DGD light polarization direction portion of the rotary output; an error rate monitor for measuring the photodetector output bit error rate; a feedback the control unit, the light outputs of the detectors are processed to extract the spectral information of the input light beams carrying radio frequency ringing, a control section controlling at least (1) the input polarization state controller and (2) the tunable optical polarization direction rotator for causing RF tones extracted maximum or minimum in order to reduce an error rate of the output light.
  33. 33. 一种光学器件,其特征在于,包括以下几部分: 一个输入端口用以接受光;一组差分群时延(DGD)部分,每个部分使一束光的两个正交偏振态使光通过光双折射完成一个DGD,每个DGD部分沿输入端口接受的光的传播方向间隔排列;一组可调光偏振方向旋转器,其放置在DGD之间的空位中,一个可调光偏振方向旋转器的每个缺口使经过一个D⑶后进入下一个D⑶之前的光的偏振方向发生变化;可调光偏振方向旋转器至少包括一个可根据控制信号连续调节的可调光旋转器,用以连续调节输出光的偏振态方向已达到理想值;可调光偏振方向旋转器的不同的状态可分别受不同状态的控制信号的控制,用以产生两个或多个不同的偏振态方向;一个控制单元用以和可调光偏振方向旋转器进行通信,以单独控制各个可调光偏振方向旋转器;控制单元可产生不同的连续 33. An optical device characterized by comprising the following parts: an input port for receiving light; a set of differential group delay (the DGD) portions, each of the two orthogonal polarization states of the beam of light so that a birefringent light through a complete DGD, each DGD portion spaced along the propagation direction of the input port receiving light; a set of adjustable light polarization direction rotator, which is disposed in the space between the DGD, a tunable light polarizing each notch filter so that the direction of rotation after a D⑶ polarization direction of light entering the next D⑶ before change; tunable light polarization direction of rotation of at least one control signal comprises a continuously adjustable tunable optical rotator, for adjusting the polarization direction of the continuous light output has reached a desired value; different state tunable optical polarization direction rotator is controlled by the control signal may be respectively different states, for generating two or more different polarization directions; a and a control unit for the tunable optical polarization direction rotator communicate separate controls the polarization direction of the respective variable optical rotator; the control unit may generate different successive 化的控制信号已连续的操纵可调光旋转器,产生不同状态的控制信号之一用以控制可调光旋转器连续产生两个或多个偏振态方向。 One manipulation consecutive tunable optical rotator generate different states of the control signals a control signal for controlling the variable optical rotator continuously generate two or more polarization directions.
  34. 34.如权利要求32所述的光学器件,其特征在于:不同状态的可调光旋转器为可调的双状态的偏振态旋转器,每个均可调节以改变通过光的一阶旋转角度和在一阶旋转角度相反方向的二阶等效旋转角度之间的偏振旋转角度。 34. The optical device according to claim 32, wherein: the adjustable rotator different states is adjustable polarization rotator double-states, each can be adjusted to vary the angle of rotation by the first order light and a second order polarization rotation angle between the rotation angle of the first order equivalent of rotation angle of the opposite direction.
  35. 35.如权利要求32所述的光学器件,其特征在于:不同状态的可调光旋转器包括可调的双状态的偏振态旋转器,每个均可调节以改变通过光的一阶旋转角度和在一阶旋转角度相反方向的二阶等效旋转角度之间的偏振旋转角度。 35. The optical device according to claim 32, wherein: the state of the tunable optical rotator different polarization rotator comprises adjustable dual-states, each can be adjusted to vary the angle of rotation by the first order light and a second order polarization rotation angle between the rotation angle of the first order equivalent of rotation angle of the opposite direction.
  36. 36.如权利要求33所述的光学器件,其特征在于:每个双状态的光偏振方向旋转器,其中一阶旋转角度为+22. 5°,二阶相反的旋转角度为-22. 5°。 36. The optical device according to claim 33, wherein: each of the light direction of the double polarization rotator state, wherein a rotation angle of the order of +22 5 °, a second order opposite to the rotation angle of -225. °.
  37. 37.如权利要求32所述的光学器件,其特征在于: 不同状态的可调光旋转器包括:可调的三状态偏振态旋转器每个均可调以使经过的偏振光的方向以三个不同的旋转角度旋转;可调的双状态偏振态旋转器每个均可调以使经过的偏振光的方向在三个不同的旋转角度之间旋转。 37. The optical device according to claim 32, wherein: the adjustable rotator different states comprising: an adjustable three-state polarization rotator can be adjusted so that each polarization direction through a three different rotation angle; adjustable two-state polarization rotators so that each can be adjusted through rotation of the polarization direction among three different rotation angles.
  38. 38.如权利要求36所述的光学器件,其特征在于:不同状态的可调光偏振态旋转器包括可调的三状态偏振态旋转器每个均可调以使经过的偏振光的方向以三个不同的旋转角度旋转;每个可调的三状态偏振态旋转器包括沿光传播方向排列的两个双状态偏振态旋转器, 每个双状态的偏振态旋转器,每个均可调节以改变通过光的一阶旋转角度和在一阶旋转角度相反方向的二阶等效旋转角度之间的偏振旋转角度;控制单元控制两个双状态偏振态旋转器以使其共同产生三个不同的旋转角度。 38. The optical device according to claim 36, wherein: the different states of the adjustable polarization rotator comprises a light adjustable three-state polarization rotator can be adjusted so that each polarization direction to pass three different rotation angle; three-state polarization state of each of the adjustable rotator comprises two pairs of aligned direction of light propagation state of polarization rotator, each dual polarization rotator state, each can be adjusted a step to alter the rotation angle of light and a second order polarization rotation angle between the rotation angle of the first order equivalent of rotation angle in the opposite direction; and a control unit for controlling the state of two pairs of polarization rotator so as to produce a common three different the angle of rotation.
  39. 39.如权利要求37所述的光学器件,其特征在于:控制部分使在每个三状态光旋转器中的两个双状态的光偏振方向旋转器(1)均旋转一阶分离的偏振角度(2)分别旋转一阶分离的偏振角度和二阶分离的偏振角度(3)均旋转二阶分离的偏振角度。 39. The optical device according to claim 37, wherein: the control portion rotating the polarization direction of the light in each of three-state optical rotator of the two pairs of states (1) are rotated by a separate order polarization angle (2) are rotated in a first order and second order polarization angle separating the separation angle of polarization (3) are separated the rotation of second order polarization angle.
  40. 40. 一种用于偏振模色散(PMD)补偿的器件,其特征在于,包括: 一个输入端口用以接受光;一组差分群时延(DGD)部分,每个部分使一束光的两个正交偏振态使光通过光双折射完成一个DGD,每个DGD部分沿输入端口接受的光的传播方向间隔排列;一组可调光偏振方向旋转器,其放置在DGD之间的空位中,一个可调光偏振方向旋转器的每个缺口使经过一个D⑶后进入下一个D⑶之前的光的偏振方向发生变化;可调光偏振方向旋转器至少包括一个可根据控制信号连续调节的可调光旋转器,用以连续调节输出光的偏振态方向已达到理想值;可调光偏振方向旋转器的不同的状态可分别受不同状态的控制信号的控制,用以产生两个或多个不同的偏振态方向;一个控制单元用以和可调光偏振方向旋转器进行通信,以单独控制各个可调光偏振方向旋转器产生三个不同的偏 40. A polarization mode dispersion (PMD) compensation device, characterized in that, comprising: an input port for receiving light; a set of differential group delay (the DGD) parts, each part of the two so that a beam of light orthogonal polarization light by a light birefringent DGD completed, each DGD portion spaced along the propagation direction of the input port receiving light; a set of adjustable light polarization direction rotator, which is placed in the space between the DGD , a light polarization direction of each gap adjustable rotator causes a D⑶ after entering the polarization direction of light before the next change D⑶; tunable light polarization direction rotator comprises at least one control signal in accordance with a continuously adjustable variable rotator for continuous adjustment of the output light polarization direction has reached a desired value; different state tunable optical polarization direction rotator is controlled by the control signal may be respectively different states, for generating two or more different the polarization direction; and a control unit for the tunable optical polarization direction rotator communicate to each individually controlled dimmable rotating the polarization direction produces three different partial 旋转角度之一的旋转角度,以使经过DGD部分和可调光偏振方向旋转器的光产生一阶或高阶偏振模色散以减小接受的输入光的PMD。 One of the rotation angle of the rotation angle, so that the PMD a first or higher order to reduce the polarization mode dispersion of the input light received through the light generating portion and adjustable DGD light polarization direction rotator.
  41. 41.如权利要求33所述的器件,其特征在于: 每个可调光偏振方向旋转器包括:两个双状态的可调光偏振方向旋转器沿光传播方向放置,每个双状态的可调光偏振方向旋转器可以调节,用以改变通过光的一阶旋转角度和在一阶旋转角度相反方向的二阶等效旋转角度之间的偏振旋转角度;控制单元可以控制两个双状态的光偏振方向旋转器共同产生三种不同的偏振旋转。 41. The device according to claim 33, wherein: each tunable light polarization direction rotator comprising: tunable light polarization direction rotator disposed along the light propagation direction of the two pairs of states, each can be a two-state dimming rotating the polarization direction can be adjusted to change the rotation angle of first-order light and the polarization rotation through an angle between the rotation angle of the second order equivalent to the rotational angle of the first order opposite direction; the control unit may control two pairs of states rotating the polarization direction of light collectively to generate three different polarization rotation.
  42. 42.如权利要求34所述的器件,其特征在于:每个双状态的光偏振方向旋转器由磁电偏振方向旋转器组成。 42. The device according to claim 34, wherein: each of the light polarization direction of the rotating dual magnetic states by the direction of rotation of the polarization components.
  43. 43.如权利要求34所述的器件,其特征在于:控制部分使在每个光偏振方向旋转器中的两个双状态的光偏振方向旋转器(1)均旋转一阶偏振角度(2)分别旋转一阶偏振角度和二阶偏振角度(3)均旋转二阶偏振角度。 43. The device according to claim 34, wherein: the control portion rotating the polarization direction of the light in the light polarization direction of each of the two pairs of rotators in the state (1) are first order polarization angle of rotation (2) order polarization rotation angle, respectively, and a second order polarization angle (3) are second order polarization rotation angle.
  44. 44. 一种用以测量光纤链路中光偏振模色散(PMD)的的方法,包括以下步骤:使用WDM 解复用器接受光纤链路中不同WDM波长的WDM信号,已从不同的信号路径中分离出接受的WDM光信号;通过D⑶部分,使用位于不同信号路径之一的光接收机接受和处理各个不同WDM波长的WDM信号以测量WDM信号的PMD ;DGD部分使一束光的两个正交偏振态使光通过光双折射完成一个DGD,每个DGD部分沿光的传播方向间隔排列;一组可调光偏振方向旋转器,其放置在DGD之间的空位中,通过可调光偏振方向旋转器,其放置在DGD之间的空位中,其中一个可调光旋转器包括一个可根据控制信号连续调节的可调光旋转器,用以产生两个或多个不同的偏振态旋转在每个间隔中;可调光偏振方向旋转器的不同的状态可分别受不同状态的控制信号的控制,用以产生三个不同的偏振态方向;分别控制每 44. A method for the optical fiber link polarization mode dispersion (PMD) of the measurement comprising the steps of: receiving using WDM demultiplexer WDM signals at different WDM wavelengths of an optical fiber link, from different signal paths separating the WDM optical signal received; D⑶ portion by using the optical receiver positioned to receive one of the different signal paths and the different processing WDM signal WDM wavelengths of the WDM signal to measure the PMD; one beam so that two portions of the DGD orthogonal polarization states of the light through the light complete a birefringent DGD, spaced along the direction of propagation of the optical portion of each DGD; a set of adjustable light polarization direction rotator, which is placed in the space between the DGD by dimmable the direction of polarization rotator disposed in the space between the DGD in which a tunable optical rotator according to the control signal comprises a continuous adjustment of the adjustable rotator for generating two or more different polarization rotation in each interval; different state tunable optical polarization direction rotator is controlled by the control signal may be respectively different states, for generating three different polarization directions, respectively; each of the control 可调光偏振方向旋转器以产生三个偏振旋转角度之一以控制经过DGD 部分和可调光偏振方向旋转器的一阶或高阶偏振模色散以抵消接受的光WDM信号的PMD ; 通过设置可调光偏振方向旋转器和D⑶的值以测量光纤链路中的PMD。 Dimmable rotating the polarization direction to produce one of the three polarization rotation angle to the control portion through the DGD and the tunable optical polarization direction rotator first or higher order to compensate polarization mode dispersion PMD of an optical WDM signal received; Setting tunable light polarization direction rotator and D⑶ to measure fiber link PMD.
  45. 45. 一种用以测量光纤链路中光偏振模色散(PMD)的方法,其特征在于,包括以下步骤:使用WDM解复用器接受光纤链路中不同WDM波长的WDM信号,已从不同的信号路径中分离出接受的WDM光信号;在WDM解复用器之前分离出WDM解复用器接受的光,以产生对应不同光路径的光监测信号;调节可调节光监测路径中的光滤波器以选择WDM通道已得到需要的信号,作为已滤波的选择的WDM通道的光监测信号;使用PMD仪器产生选择的WDM通道的光监测信号以测量选定WDM通道的PMD ; 通过D⑶部分,使用位于不同信号路径之一的光接收机接受和处理各个不同WDM波长的WDM信号以测量WDM信号的PMD ;DGD部分使一束光的两个正交偏振态使光通过光双折射完成一个DGD,每个DGD部分沿光的传播方向间隔排列;一组可调光偏振方向旋转器,其放置在DGD之间的空位中,通过可调光偏振方向旋转器 45. A method for the optical fiber link polarization mode dispersion (PMD) measurement, characterized by comprising the steps of: receiving using WDM demultiplexer WDM signals at different WDM wavelengths of an optical fiber link, different from isolated signal path WDM optical signal received; separated before the WDM demultiplexer WDM demultiplexer received light to produce an optical monitor signal corresponding to different optical paths; monitoring light path adjusting an adjustable WDM channel the filter has been to select the desired signal, as an optical monitoring signal WDM channels selected filtered; the PMD monitoring signal generated by the instrument optical WDM channels selected to measure the PMD selected WDM channel; part by D⑶, use one optical receiver positioned to accept the different signal paths and processing of various signals WDM WDM wavelengths of the WDM signal to measure the PMD; DGD portions of the two orthogonal polarization states of the light beam of a complete light by the birefringent DGD , along the propagation direction of each light DGD portion spaced; a set of adjustable light polarization direction rotator, which is placed in the space between the DGD by a polarization direction rotator dimmable 其放置在DGD之间的空位中,其中一个可调光旋转器包括一个可根据控制信号连续调节的可调光旋转器,用以产生两个或多个不同的偏振态旋转在每个间隔中;可调光偏振方向旋转器的不同的状态可分别受不同状态的控制信号的控制,用以产生三个不同的偏振态方向;分别控制每个可调光偏振方向旋转器以产生三个偏振旋转角度之一以控制经过DGD 部分和可调光偏振方向旋转器的一阶或高阶偏振模色散以抵消接受的光WDM信号的PMD ; 通过设置可调光偏振方向旋转器和D⑶的值以测量光纤链路中的PMD。 Placed in the space between the DGD in which a tunable optical rotator according to the control signal comprises a continuous adjustment of the adjustable rotator for generating two or more different polarization states in each rotation interval ; different state tunable optical polarization direction rotator can be separately controlled by the control signal of the different states, for generating three different polarization directions, respectively; dimmable controlling each polarization direction to produce three polarization rotator one of the control angle of rotation through a first or higher order PMD DGD portion and the tunable optical polarization direction rotator WDM optical signal to counteract the PMD is received; by setting the value of the optical tunable polarization direction rotator and to D⑶ measuring fiber link PMD.
  46. 46.如权利要求40所述的方法,其特征在于,包括:随后在光监测路径中调节可调节光滤波器到第二个选择的WDM通道; 操作PDM仪器测量第二个选择的WDM通道的PMD值。 46. ​​The method according to claim 40, further comprising: adjusting the adjustable optical filter and then to a second selected WDM channels in an optical path of the monitoring; PDM operation of the second instrument measures the selected WDM channel PMD value.
  47. 47.如权利要求40所述的方法,其特征在于,还包括:在操作PMD仪器时,监测通过可调节光偏振态旋转器的光的偏振态; 在测量PMD过程中,通过监测通过可调节光偏振态旋转器的光的偏振态监测控制进入PMD仪器的光的偏振态。 47. A method according to claim 40, characterized in that, further comprising: when operating the instrument PMD, monitored by an adjustable polarization rotator light polarization state of light; PMD measurement process, by monitoring can be adjusted by monitoring and control of the light polarization state of light polarization rotator into the PMD apparatus polarization state of light.
  48. 48.如权利要求40所述的方法,其特征在于,还包括:在操作PMD仪器时,监测通过可调节光偏振态旋转器的光的一位误码率; 在测量PMD过程中,控制通过可调节光偏振态旋转器的光的一位误码率。 48. The method according to claim 40, characterized in that, further comprising: when operating the instrument PMD, monitored by an adjustable polarization rotator is an optical bit error rate of light; PMD measurement process, the control by a bit error rate of the adjustable polarization rotator optical light.
  49. 49.如权利要求40所述的方法,其特征在于,还包括:在操作PMD仪器时,监测通过可调节光偏振态旋转器的光的射频响铃;在测量PMD过程中,使通过可调节光偏振态旋转器的光的一射频响铃的功率最大或最 49. The method according to claim 40, characterized in that, further comprising: when operating the instrument PMD, monitored by an adjustable polarization rotator light radio frequency ring light; PMD measurement process, so that by an adjustable a maximum radio frequency power of rings of light polarization rotator light or most
  50. 50.如权利要求40所述的方法,其特征在于,还包括:在光纤链路中的发送方,使用光源产生一个宽带的光测试信号覆盖不同的光WDM的波长,一个可调光滤波器以得到包含在选定的WDM通道里的光测试信号。 50. The method according to claim 40, characterized in that, further comprising: a transmission side in the optical fiber link, using different light sources produce a broadband optical test signal covering the optical WDM wavelength, a tunable optical filter to obtain optical test signal contained in the selected channel in the WDM.
  51. 51.如权利要求46所述的方法,其特征在于,还包括:接下来在光纤链路中的发送方调节可调节光滤波器和在光监测路径中调节可调节光率到下一个选定的WDM通道;操作PMD仪器以测量第二个选定通道的PMD值。 51. A method according to claim 46, characterized in that, further comprising: an optical fiber link in the next sender and adjusting the adjustable optical filter may be adjusted to adjust the light of the next selected path in the optical monitoring the WDM channel; PMD operating instrument to measure a second selected channel PMD value.
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