CN102594442B - A method of erasing and reproducing apparatus and the wavelength label - Google Patents

A method of erasing and reproducing apparatus and the wavelength label Download PDF

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CN102594442B
CN102594442B CN201210045879.2A CN201210045879A CN102594442B CN 102594442 B CN102594442 B CN 102594442B CN 201210045879 A CN201210045879 A CN 201210045879A CN 102594442 B CN102594442 B CN 102594442B
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label
wavelength
tag
signal
output
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CN102594442A (en
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刘征
尚迎春
陈勋
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南京中兴软件有限责任公司
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Abstract

本发明公开了一种波长标签的擦除和再生方法,其方法包括:检测输入光信号中的波长标签,并生成控制擦除波长标签的信号,对波长标签进行擦除;检测输出光信号中的波长标签,并判断波长标签是否已擦除,若波长标签已擦除,则加载新的标签。 The present invention discloses a method of erasing and reproducing wavelength label, the method comprising: detecting an input optical wavelength label signal, and generates a control signal wavelength erase the label, the label is erased wavelength; detecting the output optical signal wavelength label, and determines whether the wavelength label has been erased, if the wavelength label has been erased, then load the new label. 本发明使得波长标签的擦除和再生与净荷相对独立,不会对净荷造成影响;此外,本发明中将擦除和再生划分为两个相对独立的部分,既可以输出加载了再生的标签的光信号,也可以只输出没有加载任何标签的光信号,使得光标签的信号具有更大的灵活性。 The present invention enables erasing and reproduction with the wavelength label is relatively independent of the payload, the payload will not affect; In addition, in the present invention, erasing and reproducing is divided into two independent portions, may be loaded reproduced output tag is an optical signal, may output only the optical signal is not loaded in any of the tag, the tag such that the signal light having greater flexibility.

Description

一种波长标签的擦除和再生方法及装置 A method of erasing and reproducing apparatus and the wavelength label

技术领域 FIELD

[0001]本发明涉及光通信技术领域,尤其涉及一种波长标签的擦除和再生方法及装置。 [0001] The present invention relates to optical communication technologies, and particularly to a wavelength label erasing and reproducing method and apparatus.

背景技术 Background technique

[0002] 随着WDM (Wavelength Division Multiplex,波分复用)技术的发展,当前的光通信网络可在同一根光纤中同时传输几十个至几百个波长的光信号,而且基于R0ADM (Reconfigurable Optical Add-Drop Multiplexer,可重构光分插复用器)的技术方便了光通信中各个波长的按需配置,使得光网络中的各波长在两个站点(也称作节点)之间并非保持同样的路径,或者某波长也并非永远分配给某两个站点。 [0002] With the development of WDM (Wavelength Division Multiplex, WDM) technology, the current optical communications network can transmit several tens to several hundreds of optical signal wavelengths in the same fiber, but also on R0ADM (Reconfigurable optical Add-drop multiplexer, reconfigurable technology between OADM) each arranged to facilitate on-demand communication wavelength, the wavelength of light such that each of the two sites in the network (also referred to as nodes) is not maintain the same path, or a certain wavelength is not always assigned to a two sites.

[0003]为了进行网络拓扑识别和光信道探测,可以在光网络中的波长上叠加低频的标签信号,同时在网络中的各节点上识别光通道中的标签信号,通过解出标签信号中所携带的信息,得到光信号在网络中的传输路径和其它波长相关等信息。 [0003] For network topology identification and an optical channel sounding, can be superimposed tag signal low on the wavelength of the light in the network, while the identification tag of the signal light path at each node in the network, by solving carried tag signal information, information obtained in the network transmission path and other wavelength-dependent optical signals and the like. 加载波长标签(也称作光标签)信号的方式包括使用电可调光衰减器、带有低速调制方式的光发射器、带有低速调制方式的高速业务调制器如MZ (mach-zehnder)调制器、光放大器等。 Loading the wavelength label (tag also referred to as light) mode using an electrical signal includes an adjustable optical attenuator, a light emitter with low modulation mode, high-speed service with low modulation modulator as MZ (mach-zehnder) Modulation , optical amplifiers. 波长标签信号的调制深度通常设置在2%〜10%之间,如为3%或5%。 Wavelength modulation depth tag signal is generally disposed between 2% ~ 10%, such as 3% or 5%.

[0004] 随着光网络复杂度的不断提高,网络中节点数量迅速增长,在DWDM (Dense Wavelength Division Multiplexing,密集型光波复用)系统中,波长信道的数量也越来越多,那么在多个节点之间传递的波长标签,就可能需要进行更改,这就要实现波长标签的擦除和再生。 [0004] With the increasing complexity of the optical network, the rapid growth in the number of network nodes, the DWDM (Dense Wavelength Division Multiplexing, intensive light wave multiplexing) system, the number of wavelength channels is more and more, then the multi- transfer between nodes wavelength label, may need to be changed, it is necessary to achieve reproduction and erasure of the wavelength label.

[0005] 目前现存的技术中,对于光标签的擦除和再生处理,大多是基于对有效净荷进行处理的。 [0005] Currently existing techniques for erasing and reproduction processing optical tag, mostly based on the valid payload to be processed.

[0006] —篇专利号为US7224909B2的美国专利“method and system for selective optical payload cancellation”,涉及如何将有效净荷(payload)中的某些频段进行擦除的技术,目的是为了在这些频段中加载光标签信号时,避免净荷对标签信号的影响。 [0006] - articles Patent No. U.S. Patent No. US7224909B2 "method and system for selective optical payload cancellation", relates to how effective payload (payload) in some frequency bands erasing technique, the purpose of these bands loading the optical label signal, the label to avoid affecting the payload signal. 该技术虽然能够擦除对应频段的信号,但是由于是对净荷进行处理,所以业务信号会受到影响,而且信噪比(Signal Noise Ratio,简称为SNI?)也会在一定程度上劣化,这对传输性能来说是一个不利因素;另外,该技术在控制策略中使用前馈控制,而这种控制方法形成了两个不同的信号处理路径,此种情况下,两个独立路径的同步问题,就是一个比较复杂的问题,虽然该发明中使用了光延迟环节,但是延迟的精确控制和抗干扰能力是很难得到保证的。 Although this technique can erase signal corresponding to the band, but because it is the payload processing, so the traffic signal will be affected, and the SNR (Signal Noise Ratio, abbreviated as SNI?) Will deteriorate to some extent, transmission performance is a disadvantage; Further, the feedforward control technique used in the control strategy, and this method for controlling the formation of two different signal processing paths, the synchronization problem in this case, two independent paths , it is a complex problem, although the invention is used in the optical link delay, but the delay precise control and anti-jamming capability is difficult to be guaranteed.

[0007] 另一篇专利号为US7702246B2的专利“optical label switching scheme employing differential phase-shift keying for payloads and intensity modulation for labels using a single optical modulator”,涉及如何将标签信号叠加到有效净荷(payload)上,并利用MZ调制器进行编码调制的技术,以及利用RF (radio frequency,射频)抑制放大器将标签擦除的技术。 [0007] Another one of Patent No. US7702246B2 "optical label switching scheme employing differential phase-shift keying for payloads and intensity modulation for labels using a single optical modulator", relates to how to tag signal superimposed valid payload (payload) , the MZ modulator for using coded modulation technique, and the use of RF (radio frequency, RF) amplifier inhibiting erasure tag technology. 该技术虽然能擦除对应射频频段的信号, 但是由于是对净荷进行处理,所以会在一定程度上引入噪声,对业务信号造成千扰。 Although this technique can erase signal corresponding to a radio frequency band, but since the payload is processed, it introduces noise to some extent, one thousand causing interference with traffic signals. 另外, 该技术在重新加载时,是用独立的两个信号处理路径对标签信号进行擦除和再生处理,这样,两个路径的同步将是一个比较复杂的问题。 Further, this technique when reloading is carried out with two separate signal processing paths and erase the tag signal reproduction processing, so that the synchronization of two paths will be a complex problem.

[0008] 综上所述,现有技术存在如下问题:光标签的擦除和再生处理,是基于有效净荷进行处理的,因而会对净荷造成影响,进而影响业务信号的传输性能;此外,现有的对光标签信号的擦除和再生处理方法是采用两个独立的信号处理路径分别进行擦除和再生,之后在某个节点处进行叠加,因此,涉及到两个不同的信号处理路径的同步问题,增加了实现的复杂度。 [0008] In summary, there is a problem in the prior art: erasing and reproduction processing optical tag, based on the effective payload is processed, thereby causing effects on the payload, thereby affecting the transmission performance of the traffic signal; furthermore , conventional erasing and reproducing optical label signal processing method is to use two separate signal processing paths, respectively, erase and regeneration, followed by superimposed at a node, thus involving two different signal processing synchronization path, increasing the complexity of the implementation.

发明内容 SUMMARY

[0009] 本发明解决的技术问题是提供一种波长标签的擦除和再生方法及装置,波长标签的擦除和再生与净荷相对独立,不会对净荷造成影响。 [0009] The technical problem underlying the present invention is to provide a wavelength label erase and erase and reproducing method and reproducing apparatus and the payload, independent of the wavelength label, it does not affect the payload.

[0010] 为解决上述技术问题,本发明提供了一种波长标签的擦除和再生方法,所述方法包括: [0010] In order to solve the above technical problem, the present invention provides a method of erasing and reproducing wavelength tag, the method comprising:

[0011] 检测输入光信号中的波长标签,并生成控制擦除波长标签的信号,对波长标签进行擦除; [0011] wavelength label detection input optical signal, and generates a control signal wavelength erase the label, the label is erased wavelength;

[0012] 检测输出光信号中的波长标签,并判断波长标签是否已擦除,若波长标签已擦除, 则加载新的标签。 [0012] The optical output wavelength label detection signal, and determines whether the wavelength label is erased, if the wavelength label is erased, a new label is loaded.

[0013] 进一步地,通过前侧分光耦合器从输入光信号中分出一部分输出给前侧标签检测器,由所述前侧标签检测器检测分出的所述输入光信号中的波长标签; [0013] Further, by the front portion of the dichroic coupler to the front side of the separated tag output from the input optical signal detector, the front side by the label detector separated wavelength of the input optical signal in the tag;

[0014] 通过后侧分光耦合器从所述输出光信号中分出一部分输出给后侧标签检测器,由所述后侧标签检测器检测分出的所述输出光信号中的波长标签。 [0014] separated by a dichroic coupler rear portion of the output optical signal from the output to the rear side of the label detector, the wavelength of the output optical signal separated label from the rear side of the label detector.

[0015] 进一步地,所述后侧标签检测器通过以下方式判断分出的所述输出光信号中的波长标签是否已擦除: [0015] Further, the rear side by way of the tag detector wavelength label determining whether said output optical signal separated in the erased:

[0016] 若所述后侧标签检测器检测不到标签的幅度、或者检测到的标签幅度在预定范围内,则判定波长标签已擦除;否则,判定波长标签仍存在。 [0016] When the detector detects the amplitude of rear tag not label or tag is detected within a predetermined amplitude range, it is determined that the wavelength label erased; otherwise, it is determined wavelength label remain.

[0017] 进一步地,所述生成控制擦除波长标签的信号,对波长标签进行擦除,具体包括: [0017] Further, the wavelength control signal is generated to erase the label, the label is erased wavelength, comprises:

[0018] 根据所述前侧标签检测器检测到的输入光信号的波长标签的频率,生成与所述输入光信号的波长标签的频率相同的控制擦除波长标签的信号; [0018] detected by the input optical signal wavelength of the frequency of the tag, the tag generates a signal wavelength of the same frequency as the input optical signal wavelength label erasing control according to the front side of the label detector;

[0019] 所述后侧标签检测器判断出输出光信号中的波长标签还未擦除时,则判断所述输出光信号的波长标签的幅度是否处于谷底拐点,如果处于谷底拐点,则对所述控制擦除波长标签的信号进行相位调整;否则,对所述控制擦除波长标签的信号进行幅度调整,直至所述后侧标签检测器判断出输出光信号中的波长标签已擦除。 [0019] The rear tag detector determines that the output optical signal wavelength label has not been erased, it is determined that the amplitude of the output signal light wavelength of the label is at the bottom of the inflection point, if the inflection point is in the bottom, then the the erasing said control signal to adjust the phase of the wavelength label; otherwise, the erase control signal of the wavelength label amplitude adjusted until the detector determines that the rear tag label output wavelength of the optical signal has been erased.

[0020] 进一步地,所述波长标签的幅度是否处于拐点的判断标准,具体为:利用检测的最近三次的波长标签的幅度进行判断,如果最近三次的波长标签的幅度值不是单调的,且中间的幅度值是最小的,则判定处于谷底拐点。 [0020] Furthermore, the amplitude of the label is in the wavelength criteria inflection point, specifically: using amplitude detection wavelength last three tag judgment, if the magnitude of the wavelength of the last three tag value is not monotonic, and the intermediate is the minimum amplitude value, it is determined at the bottom of the inflection point.

[0021] 进一步地,所述方法还包括: [0021] Preferably, the method further comprising:

[0022] 通过所述前侧分光耦合器和后侧分光耦合器进行分光后,通过光放大器和可调光衰减器对光彳目号进行放大和哀减,使输出光信号和输入光信号的光功率相同。 [0022] After the sub-optical coupler and rear dichroic coupler disperses through the front side, and Decay amplified light by the optical amplifier left foot mesh number variable optical attenuator and the output optical signal and the optical signal input the same optical power.

[0023] 本发明还提供了一种波长标签的擦除和再生装置,所述装置包括:擦除模块和再生模块, [0023] The present invention further provides an apparatus for reproducing and erasing wavelength labels, said apparatus comprising: a reproducing module, and erasing the module,

[0024] 所述擦除模块用于,检测输入光信号中的波长标签,并生成控制擦除波长标签的信号,对波长标签进行擦除;检测输出光信号中的波长标签,并判断波长标签是否已擦除; [0024] The erase module for optical wavelength label detection input signal, and generates a control signal wavelength erase the label, the label is erased wavelength; wavelength label detection output optical signal, and determines the wavelength label It has been erased;

[0025] 所述再生模块用于,得知波长标签已擦除后,则加载新的标签。 The [0025] means for reproducing, the wavelength label that has been erased, the new label is loaded.

[0026] 进一步地,所述擦除模块进一步包括前侧分光耦合器、前侧标签检测器、后侧分光耦合器、后侧标签检测器、光放大器、可调光衰减器、可调相位滞后器、波形发生器和主控单元, [0026] Further, the erase module further comprises a dichroic coupler front side, the front side of the label detector, the rear side of the dichroic coupler, a detector rear tag, an optical amplifier, an adjustable optical attenuator, the adjustable phase delay , a waveform generator and a main control unit,

[0027] 所述前侧分光耦合器、光放大器、可调光衰减器和后侧分光耦合器依次相连; [0027] the front side of the dichroic coupler, an optical amplifier, an adjustable optical attenuator and a dichroic coupler sequentially coupled to the rear;

[0028] 所述前侧分光耦合器与所述前侧标签检测器相连,用于从输入光信号中分出一部分输出给所述前侧标签检测器,由所述前侧标签检测器检测分出的所述输入光信号中的波长标签,并输出标签信息给所述主控单元; [0028] the front side of the dichroic coupler and a detector coupled to the front side of the tag, for output to the front side of the drop detector portion of the tag from the input optical signal, detected by the front-side tag detector minutes the wavelength of the input optical signal in the tag, and outputs the tag information to the main control unit;

[0029] 所述后侧分光耦合器与所述后侧标签检测器相连,用于从输出光信号中分出一部分输出给所述后侧标签检测器,由所述后侧标签检测器检测分出的所述输出光信号中的波长标签,并输出标签信息给所述主控单元; [0029] The rear side of the rear dichroic coupler tag detector is connected for separation of part of the optical signal output from the output to the rear tag detector, detected by the detector points rear tag the output wavelength of the optical signal in the tag, and outputs the tag information to the main control unit;

[0030] 所述主控单元分别与所述波形发生器及所述可调相位滞后器相连,所述可调相位滞后器分别与所述波形发生器及所述可调光衰减器相连;所述主控单元根据所述前侧标签检测器输出的标签信息中的输入光信号的波长标签的频率,生成与所述输入光信号的波长标签的频率相同的控制擦除波长标签的信号,并根据所述后侧标签检测器输出的标签信息,控制所述可调相位滞后器和/或所述波形发生器对所述控制擦除波长标签的信号进行相位和/或幅度调整;并将调整完毕后的所述控制擦除波长标签的信号输出给所述可调光衰减器。 [0030] the main control unit respectively connected to the adjustable waveform generator and said phase lag is connected, the adjustable phase delay respectively and with said waveform generator connected to said variable optical attenuator; the said main control unit in accordance with the frequency of the input optical signal wavelength label tag information of the front side of the tag in the detector output, to generate the same frequency as the wavelength of the input optical signal label erasing signal wavelength control tag, and the tag information to the tag rear detector output, controlling the adjustable phase and / or amplitude adjust the phase lag and / or the waveform generator to said erasing control signal is the wavelength label; and adjustment after the completion of the erase control signal to the tag output wavelength variable optical attenuator.

[0031] 进一步地,所述后侧标签检测器通过以下方式判断分出的所述输出光信号中的波长标签是否已擦除: [0031] Further, the rear side by way of the tag detector wavelength label determining whether said output optical signal separated in the erased:

[0032] 若所述后侧标签检测器检测不到标签的幅度、或者检测到的标签幅度在预定范围内,则判定波长标签己擦除;否则,判定波长标签仍存在。 [0032] When the detector detects the amplitude of rear tag not label or tag is detected within a predetermined amplitude range, it is determined that the tag has a wavelength erased; otherwise, it is determined wavelength label remain.

[0033] 进一步地,所述再生模块进一步包括标签加载单元和控制单元, [0033] Further, the regeneration module further comprises a label loading unit and a control unit,

[0034] 所述主控单元用于,通知所述控制单元波长标签己擦除,并传送给控制单元加载新的标签的内谷; [0034] the main control unit is configured to notify the control unit has an erase wavelength label, to the control unit and loading a new label in the valley;

[0035] 所述控制单元用于,根据所述主控单元的通知,得知波长标签已擦除,并接收主控单元传送的新的标签的内容,控制所述标签加载单元加载新的标签。 [0035] a control unit for, according to the notification of the control element, that the wavelength label is erased and the new contents of the label receiving unit transmits the master, controls said label loading unit loading a new label .

[0036]进一步地,所述主控单元用于,根据所述后侧标签检测器输出的标签信息得知输出光信号中的波长标签还未擦除时,则判断所述输出光信号的波长标签的幅度是否处于谷底拐点,如果处于谷底拐点,则对所述控制擦除波长标签的信号进行相位调整;否则,对所述控制擦除波长标签的信号进行幅度调整,直至所述后侧标签检测器判断出输出光信号中的波长标签已擦除。 [0036] Further, the main control unit for, based on said rear output detector tag when the tag information that the wavelength of the output optical signal of the tag has not been erased, the wavelength of the output optical signal is determined the label is in the magnitude of the bottom turning point, if the inflection point is at the bottom, the label is erased signal wavelength control of the phase adjustment; otherwise, the erase control signal is the wavelength label amplitude adjustment, until the rear tab detector wavelength label is determined that the output optical signal has been erased.

[0037]进一步地,所述主控单元判断所述波长标签的幅度是否处于拐点的判断标准,具体为:利用检测的最近三次的波长标签的幅度进行判断,如果最近三次的波长标签的幅度值不是单调的,且中间的幅度值是最小的,则判定处于谷底拐点。 Amplitude [0037] Further, the main control unit determines whether the tag of the wavelength at the inflection point criteria, specifically: using amplitude detection wavelength last three tag judgment, if the wavelength of the amplitude value of the last three tag it is not monotonic, and the middle amplitude value is the smallest, the inflection point is determined at the bottom.

[0038]本发明提供的波长标签的擦除和再生方案,不会对净荷造成影响,波长标签利用载光的其他物理特征实现调制加载,例如光功率等,从而使得波长标签的擦除和再生与净荷相对独立;此外,本发明中,将擦除和再生划分为两个相对独立的部分,既可以输出加载了再生的标签的光信号,也可以只输出没有加载任何标签的光信号,使得光标签的信号具有更大的灵活性。 [0038] The program erasure and reproduction wavelength labels are provided by the present invention, does not affect the payload, other physical characteristics of the wavelength label implemented using a carrier modulated light load, e.g. optical power, so that the tag and erasing wavelengths regeneration and relatively independent of the payload; in addition, the present invention will be erased and reproduced is divided into two independent portions, may be loaded optical signal output reproduced tag, may output not only the loading of the optical signal to any tag so that the signal light of the tag has a greater flexibility.

[0039] 与现有技术相比较,本发明具有实现简单、成本低的突出优势,由于没有对净荷进行操作,所以不会对业务的质量造成影响;此外,本发明方案中的信号处理路径是级联形式的,因此,不会出现两个处理路径的同步复杂性问题,也提高了可靠性和稳定性。 [0039] Compared with the prior art, the present invention has a simple, low cost and the outstanding advantages, since no payload operation, so it will not affect the quality of service; In addition, the signal processing path in the embodiment of the present invention, in the form of a cascade, therefore, will not be synchronized complexity two processing paths, but also improve the reliability and stability.

附图说明 BRIEF DESCRIPTION

[0040] 此处所说明的附图用来提供对本发明的进一步理解,构成本申请的一部分,本发明的示意性实施例及其说明用于解释本发明,并不构成对本发明的不当限定。 [0040] The drawings described herein are provided for further understanding of the present invention, constitute a part of this application, exemplary embodiments of the present invention are used to explain the present invention without unduly limiting the present invention. 在附图中: In the drawings:

[0041] 图1是本发明实施例的波长标签的擦除和再生装置的组成示意框图; [0041] FIG. 1 is a schematic block diagram showing the composition of erasing and reproducing apparatus of the embodiment of the wavelength label embodiment of the present invention;

[0042] 图2是本发明实施例的波长标签擦除和再生方法的流程示意图。 [0042] FIG. 2 is a schematic flow diagram of embodiments of the wavelength label erasing and reproducing method of the embodiment of the present invention.

具体实施方式 Detailed ways

[0043] 本实施方式提供的波长标签的擦除和再生方法,采用如下方案: [0043] The method of erasing and reproducing wavelength labels are provided by way of the present embodiment, using the following scheme:

[0044] 检测输入光信号中的波长标签,并生成控制擦除波长标签的信号,对波长标签进行擦除; [0044] wavelength label detection input optical signal, and generates a control signal wavelength erase the label, the label is erased wavelength;

[0045]检测输出光信号中的波长标签,并判断波长标签是否己擦除,若波长标签已擦除, 则加载新的标签。 [0045] The optical output wavelength label detection signal, and determines whether or not erasing has wavelength label, the label is erased when the wavelength, a new label is loaded.

[0046] 其中,通过分光耦合器从输入光信号中分出一部分光信号,输出给标签检测器,由标签检测器检测所述光信号中的波长标签。 [0046] wherein a portion of the optical signal separated from the input optical signal through the dichroic coupler, a detector output to the tag, the tag label detector detects the wavelength of the optical signal by.

[0047] 进一步地,分光耦合器从输入光信号中分出一部分光信号后,通过光放大器和可调光衰减器对光信号进行放大和衰减,使输出光信号和输入光信号的光功率相同。 [0047] Further, the dichroic coupler portion of the optical signal separated from the input optical signal, the optical signal is amplified and attenuated by the optical amplifier and the variable optical attenuator, an optical output power of the optical signal and the input optical signal is the same .

[0048] 进一步地,通过分光耦合器从所述输出光信号中分出一部分光信号,输出给标签检测器,由标签检测器检测所述光信号中的波长标签,并通过以下方式判断波长标签是否已擦除: [0048] Further, by the separation of the dichroic coupler from the optical signal output part of the optical signal output to the tag detector for detecting a wavelength of the optical signal in the tag by the tag detector, the wavelength and the label is determined in the following manner It has been erased:

[0049] 若所述标签检测器检测不到标签的幅度、或者检测到的标签幅度在预定范围内, 则判定波长标签不存在/已擦除;否则,判定波长标签仍存在。 [0049] When the detector detects an amplitude not tag label or tag is detected within a predetermined amplitude range, it is determined that the wavelength label does not exist / have been erased; otherwise, it is determined wavelength label remain.

[0050] 本实施方式提供的波长标签的擦除和再生装置包括擦除模块和再生模块。 [0050] erasing and reproducing apparatus of the present embodiment provides the wavelength label includes erase module and a regeneration module. 其中, 擦除模块主要包括分光耦合器、标签检测器、光放大器、可调光衰减器、可调相位滞后器、波形发生器、主控单元。 Wherein the erase module including dichroic coupler, the tag detector, an optical amplifier, an adjustable optical attenuator, the adjustable phase delay, a waveform generator, the master unit. 再生模块主要包括标签加载单元、控制单元。 Regeneration module includes label loading unit, the control unit.

[0051]具体地,擦除模块可以位于再生模块的前面,也可以和再生模块并列。 [0051] Specifically, the erase module may be located in front of the reproducing module, the module may be reproduced and in parallel. 如果不需要擦除原有标签,而只是重新叠加一个标签上去,那么再生模块和擦除模块可以并列,如果需要擦除原有标签,那么再生模块要位于擦除模块后面,擦除模块输出的无标签的光信号,输入给再生模块,加载一个新的标签然后输出。 If not erase the original tag, but only up again superimposing a label, the erase module and the module may be reproduced in parallel, if the original tag needs to be erased, then the erase regeneration module to be located in the back of the module, the erase module output untagged optical signal input to the reproducing module, and then loading a new label output.

[0052] 分光耦合器分别位于光放大器前面和可调光衰减器的后面,用于分出一定比例的光(例如5%),输出给标签检测器进行检测和分析。 [0052] The dichroic coupler are located behind the front of the optical amplifier and variable optical attenuator for the separation of a proportion of the light (e.g., 5%), the tag detector output to be detected and analyzed.

[0053] 标签检测器分别检测输入光中的光标签和擦除模块的输出光的光标签,并用数字信号处理技术得到被检测光的光标签的幅度信息,并将幅度信息发送给主控单元。 [0053] The tag label detector detect the light output in the light of the input light and erase light module tag, and the tag information light obtained by amplitude detection light by a digital signal processing techniques, and sends amplitude information to the main control unit .

[0054] 光放大器对分光耦合器传输过来的光进行适当的放大,光放大器是可选部件,并且可以位于信号传输链路的任何位置。 [0054] The optical amplifier of the light transmitted by the dichroic coupler appropriate amplification, the optical amplifier is an optional component and may be located anywhere in a signal transmission link. 将光放大器置于入光输入的位置,可以利于后继的可调光衰减器对光信号进行衰减后,输出的光信号经过分光后,仍保持和输入光一致的功率。 After the position of the optical amplifier in the input light, can facilitate subsequent variable optical attenuator attenuating the optical signal, the optical signal output after the splitting, remains consistent and the input optical power.

[0055] 可调光衰减器用来在外部电信号的控制下,对输入的光信号进行衰减。 [0055] In the variable optical attenuator for external control electric signal inputted optical signal attenuation. 可调光衰减器对输入的光信号的衰减度和外部输入的电信号的某项特征值呈线性关系。 Wherein an electric signal is adjustable optical attenuator the attenuation of the optical signal input and external input is linear. 电信号的特征量可以是电压,或者是电流等,对于电信号的变化,可调光衰减器在足够短的时间内进行响应。 Electrical signal feature quantity may be a voltage, current or the like, to signal changes, variable optical attenuator in a sufficiently short response time.

[0056] 可调相位滞后器用来对输入的信号进行相位移动,它可以是基于数字电子技术的DPD(digital phase delay),也可以是基于其他技术的设备。 [0056] adjustable phase lag signal is inputted to phase shift, which may be based on a digital electronic technology DPD (digital phase delay), the device may also be based on other technologies.

[0057] 波形发生器用来生成一定特征的波形,波形的特征包括频率,形状,幅度等。 [0057] The waveform generator for generating a waveform of a certain characteristic, a frequency characteristic comprises a waveform shape, amplitude and the like. 它生成用于控制可调光衰减器的基本波形。 It generates a fundamental waveform control variable optical attenuator.

[0058] 控制单元用于,根据主控单元的通知,得知波长标签已擦除后,控制标签加载单元加载新的标签。 [0058] The control unit is configured, the master unit according to the notification, the wavelength label that has been erased, the control label loading unit loading a new label.

[0059] 为使本发明的目的、技术方案和优点更加清楚明白,下文中将结合附图对本发明的实施例进行详细说明。 [0059] To make the objectives, technical solutions, and advantages of the present invention will become apparent from, the accompanying drawings hereinafter in conjunction with embodiments of the present invention will be described in detail. 需要说明的是,在不冲突的情况下,本申请中的实施例及实施例中的特征可以相互任意组合。 Incidentally, in the case of no conflict, embodiments and features of the embodiments of the present application may be arbitrarily combined with each other.

[0060] 图1示出了本发明实施例的波长标签的擦除和再生装置的组成,该装置主要包括擦除模块801和再生模块802。 [0060] FIG. 1 shows a composition of the present invention according to the wavelength label erasing and reproducing apparatus embodiment, the apparatus includes a main erase module 801 and a regeneration module 802.

[0061] 擦除模块801具体包括:前侧分光耦合器101、后侧分光耦合器102;光放大器201; 可调光衰减器202;前侧标签检测器301、后侧标签检测器302;主控单元401;波形发生器501;可调相位滞后器601。 [0061] The erase module 801 comprises: a front side of the dichroic coupler 101, the rear side of the dichroic coupler 102; the optical amplifier 201; variable optical attenuator 202; front side of the label detector 301, the rear side of the label detector 302; Main control unit 401; waveform generator 501; 601 adjustable phase lag.

[0062] 再生模块802具体包括:控制单元402和标签加载单元701。 [0062] The regeneration module 802 comprises: a control unit 402, loading unit 701 and the label.

[0063] 其中,分光耦合器从主光信号中分出一小部分作为监测光信号输出给标签检测器,分光比具体可以是1 %或5%或其他数值。 [0063] wherein a small portion of the dichroic coupler separated signal is output as a monitor light to a detector tag, particularly the splitting ratio may be 1% or 5%, or other value from the primary optical signal.

[0064] 标签检测器利用数字信号处理的方法分析其中的波长标签信息,例如调频Z变换(Chirped Z Transform,简称CZT)或快速傅里叶变换(Fast Fourier Transform,简称FFT) 算法,得到波长标签的频率信息及幅度信息,标签信息的频率信息对应于波长信号的波长, 幅度信息对应于波长信号的光功率。 [0064] The tag detector using digital signal processing to analyze the wavelength label information therein, for example, Z conversion FM (Chirped Z Transform, referred to as CZT) or a fast Fourier transform (Fast Fourier Transform, abbreviated FFT) algorithm, the wavelength label frequency information and amplitude information, frequency information corresponding to the tag information of the signal wavelength, amplitude information corresponding to the optical power of the wavelength signals. 标签检测器将光标签的信息发送给主控单元做进一步的处理。 Light detector tag label information to the master unit transmits further processing.

[0065] 主控单元实现整个系统的工作的统一控制和协调,主控单元的实现可以是各种模拟或者数字技术,例如基于DSP处理器或者基于FPGA逻辑阵列等。 Unified control and coordination, to achieve control element [0065] the main control unit implements the operation of the entire system may be various analog or digital techniques, for example, based on DSP processor FPGA logic array or the like. 主控单元根据标签检测器发送的信息,确定光标签的频率,然后控制波形发生器生成一个具有和标签一样的频率的信号。 The main control unit transmits information tag detector, the frequency of the light labels is determined, then the control signal and the waveform generator generates a label having the same frequency.

[0066] 波长发生器在主控单元的控制下,生成一定的频率和幅度的控制擦除波长标签的信号(其频率与输入光信号的波长标签的频率相同,幅度则可尝试性的给定一个中间值), 并输出给可调相位滞后器。 [0066] The wavelength at the main control unit generator generates a control certain frequency and amplitude of the erasing signal wavelength tag (the same frequency as the frequency of the input optical signal wavelength label, the amplitude can be given tentative an intermediate value), and outputs to the adjustable phase delay device.

[0067] 可调相位滞后器在主控单元的控制下,对输入的信号进行相位滞后处理,输出的信号用于对可调光衰减器进行控制。 [0067] The variable phase delay under the control of the master unit, the signal processing lag phase input, the output signal for controlling the adjustable optical attenuator.

[0068]光放大器对光号进行适当的放大,本方案中使用光放大器,并且将光放大器置于可调光衰减器之前,从而使得经过可调光衰减器和分光耦合器的衰减后,输出的光信号仍然能够有和输入光信号一致的光功率。 [0068] The number of light before the light amplifier appropriate amplification, optical amplifiers used in this embodiment, and the optical amplifier in the variable optical attenuator such that the attenuation of light through the variable attenuator and the dichroic coupler, the output the optical signal is still able to have a consistent and input optical power of the optical signal.

[0069] 标签加载单元,实现每个波长加载一个独特的波长标签。 [0069] The tab loading unit, loading each wavelength to realize a unique wavelength label. 波长标签技术可参考中国邮电行业标准ro/T 2003-2009“可重构的光分插复用(R0ADM)设备技术要求”的附录D,介绍了ROADM应用中的波长踪迹监控(波长标签)技术。 Reference wavelength label technology China Posts and Telecommunications Industry Standard ro / T 2003-2009 "Reconfigurable optical add-drop multiplexing (R0ADM) Technical Requirements" in Appendix D, introduces trace monitor wavelength (the wavelength label) applications in the art that the ROADM . 在波长路径的源端点,在波长信号进入波分网络之前使用编码器进行调制编码,为每个波长信号附加一个全网唯一的标识(波长标签);在波长路径经过的各个节点的各个参考点上,都可以通过嵌入的波长标签检测器来监测和识别经过该点的各个波长的标签。 In the source endpoint wavelength path, a signal entering a wavelength division network before using encoder wave modulation encoding, appends a unique identification of the whole network (the wavelength label) for each wavelength signal; respective reference point of each node in the wavelength path passes on, can be monitored through the tag and identify the point of each wavelength by the wavelength label detector embedded.

[0070] 下面结合图2对本发明的波长标签的擦除和再生流程进行详细说明。 [0070] below with reference to FIG. 2 and erase the wavelength label regeneration process of the present invention will be described in detail.

[0071] 步骤A.检测输入光信号中的光标签; [0071] Step A. tag detecting light input optical signal;

[0072]如图1所示,前侧分光耦合器101分出一部分光给前侧标签检测器301,前侧标签检测器301利用数字信号处理的方法分析其中的波长标签信息,并进行相应的处理,输出标签的信息给主控单元401。 [0072] As shown, the front portion of the dichroic coupler 101 to the front side of the method of the optical detector 301 label, the front side of the label detector 301 using the digital signal processing analysis of wavelength drop 1 wherein the tag information, and the corresponding processing, outputs information to the main control unit 401 of the tag.

[0073] 步骤B.生成控制擦除的信号; [0073] Step B. generating a control signal erased;

[0074]主控单元401控制波形发生器501产生具有一定频率的信号,并输出给可调相位滞后器601。 [0074] The main control unit 401 controls the waveform generator 501 generates a signal having a certain frequency, and outputs to the adjustable phase delay 601.

[0075] 步骤C.检测输出光信号中的光标签; [0075] Step C. detecting the output optical signal of the optical labels;

[0076]后侧分光耦合器102分出一部分光给后侧标签检测器302,后侧标签检测器302输出标签的信息给主控单元401。 [0076] The rear portion of the light fraction separated optical coupler 102 to the rear side of the label detector 302, the rear side of the tag information detector 302 outputs a tag to the main control unit 401.

[0077]步骤D •判断光标签是否仍然存在,如果是,则转到步骤F;如果不是,则转到步骤E; [0078]如果输出光中已经没有光标签,则说明标签已经被擦除,反之,如果输出光中还有光标签,则说明控制过程需要进行迭代调整。 [0077] Step D • is determined whether the light tag still exists, if yes, go to step F.; If not, go to step E; [0078] If the output light has no light tag, then the tag has been erased Conversely, if there is the output light of the light tag, then the control process requires an iterative adjustment.

[0079]其中,光标签已擦除的判断标准可以是:标签检测器检测不到标签的幅度或者是检测到的标签幅度在容许的尽量小的范围内。 [0079] wherein the optical label erased criteria may be: an amplitude detector for detecting the label or tag is not detected tag amplitude as small as possible within the allowable range.

[00S0]步骤E •输出控制或指示信号,标识擦除过程已经完成; [00S0] Step E • output a control or instruction signal, identifying the erase process has been completed;

[0081]主控单元401发送控制或指示信号给控制单元402,控制单元402收到后,得知标签此时已经擦除,便可以控制标签加载单元701,重新加载标签。 [0081] or 401 transmits a control signal indicating the master unit 402 to the control unit, the control unit 402 receives, at this time that the label has been erased, it can control the loading unit 701 label, the label reload.

[0082]步骤F•判断光标签的幅度是否是处于谷底拐点,如果是,则转到步骤G;如果不是, 则转到步骤H; [0082] Step F • optical amplitude is determined whether the tag is in the bottom inflection point, if yes, go to step G; if not, go to step H;

[^83]_主控单元4〇1判断出需要进行迭代调整时,还不能确定是相位反相补偿不够,还是衰减幅度不够,这时需要判断标签的幅度是否处于拐点,如果是,则说明相位不需要调整, 此时只需要调整幅度,如果不是,则说明还需要调整相位。 [83 ^] _ 4〇1 main control unit determines that the iterations required adjustment, can not determine the phase inverted compensation is insufficient, the amplitude attenuation is not enough, then the need to determine whether the amplitude of the inflection point of the label, if so, then phase does not require adjustment, and the adjustment only if not, then the need to adjust the phase.

[M84]_具体地,光标签的幅度是否处于拐点的判断标准可以是:利用最近三次的标签检测的幅度进行判断,如果最近三次的值不是单调的(即幅度值曲线具有单调性),且中间的值是最小的,则说明检测到了谷底拐点。 [M84] _ In particular, the amplitude of the light labels is in the criteria inflection point may: be determined using the amplitude of the label detected last three, if the value of the last three is not monotonic (i.e., amplitude value curve has a monotonic), and the middle is the smallest value, then the inflection point is detected to the bottom.

[0085]步骤G •对控制擦除的信号进行移相处理; [0085] Step G • erasure control signal phase-shifting process;

[0086] 主控单元401控制可调相位滞后器601,对控制擦除的信号进行移相处理。 [0086] The main control unit 401 controls the variable phase delay 601, the erase control signal of phase shift processing.

[0087]步骤H.调整控制擦除信号的幅度; [0087] Step H. erasing amplitude adjustment control signal;

[0088] 主控单元401控制波形发生器501对对控制擦除的信号进行幅度调整。 [0088] The main control unit 401 controls the waveform generator 501 pairs erasure control signal amplitude adjustment.

[0089] 步骤I.当擦除过程完成后,控制加载单元,加载新的标签; [0089] Step I. When the erase process is complete, the control loading unit, loading a new label;

[0090] 主控单元402在收到擦除过程完成的指示后,接收主控单元401传送的新的标签的内容,控制标签加载单元701,加载新的标签,完成标签的再生。 [0090] The main control unit 402 after receiving the indication of the erase process is complete, the contents of the new master unit 401 receives a tag transmission, the control unit 701 loads the tag, loading a new label, the label regeneration is complete.

[0091] 以上仅为本发明的优选实施案例而已,并不用于限制本发明,本发明还可有其他多种实施例,在不背离本发明精神及其实质的情况下,熟悉本领域的技术人员可根据本发明做出各种相应的改变和变形,但这些相应的改变和变形都应属于本发明所附的权利要求的保护范围。 [0091] The above description is only the preferred embodiments of the present invention, but not intended to limit the present invention, the present invention can have a variety of other embodiments, without departing from the spirit and essence of the present invention, those skilled in the art in the art can make various corresponding modifications and variations according to the present invention, but such corresponding changes and variations should fall within the scope of the appended claims.

[0092] 显然,本领域的技术人员应该明白,上述的本发明的各模块或各步骤可以用通用的计算装置来实现,它们可以集中在单个的计算装置上,或者分布在多个计算装置所组成的网络上,可选地,它们可以用计算装置可执行的程序代码来实现,从而,可以将它们存储在存储装置中由计算装置来执行,并且在某些情况下,可以以不同于此处的顺序执行所示出或描述的步骤,或者将它们分别制作成各个集成电路模块,或者将它们中的多个模±夬或步骤制作成单个集成电路模块来实现。 [0092] Obviously, those skilled in the art should understand that the modules or steps of the present invention described above can be used general-purpose computing device, they can be integrated in a single computing device or distributed across multiple computing devices available on the Internet, optionally, they can be implemented with program codes executable by a computing device, so that, to be performed by a computing device stored in a storage means, and in some cases, may be different from this at step sequence shown or described, or they are made into integrated circuit modules, or by making a plurality of mold them ± Jue or steps into a single integrated circuit module. 这样,本发明不限制于任何特定的硬件和软件结合。 Thus, the present invention is not limited to any particular hardware and software combination.

Claims (10)

1. 一种波长标签的擦除和再生方法,其特征在于,所述方法包括: 检测输入光信号中的波长标签,并生成控制擦除波长标签的信号,对波长标签进行擦除; 检测输出光信号中的波长标签,并判断波长标签是否已擦除,若波长标签己擦除,则力口载新的标签; 所述生成控制擦除波长标签的信号,对波长标签进行擦除,具体包括: 后侧标签检测器判断出输出光信号中的波长标签还未擦除时,则判断所述输出光信号的波长标签的幅度是否处于谷底拐点,如果处于谷底拐点,则对所述控制擦除波长标签的信号进行相位调整;否则,对所述控制擦除波长标签的信号进行幅度调整,直至所述后侧标签检测器判断出输出光信号中的波长标签已擦除; 所述生成控制擦除波长标签的信号,对波长标签进行擦除,具体还包括: 根据前侧标签检测器检测到的输入光信号 1. A method of erasing and reproducing wavelength label, characterized in that, the method comprising: detecting an input optical wavelength label signal, and generates a control signal wavelength erase the label, the label is erased wavelength; detection output tag optical signal wavelength, and determines whether the wavelength label is erased, if the tag has a wavelength erase, the new label carrier power port; said erase signal generating wavelength control label, the label is erased wavelength, particularly comprising: a detector rear tag is determined that the wavelength of the output optical signal of the tag has not been erased, it is determined that the amplitude of the output signal light wavelength of the label is at the bottom of the inflection point, the inflection point if the bottom is, the control of the wiping in addition to the signal wavelength label phase adjustment; otherwise, the erase control signal of the wavelength label amplitude adjusted until the detector determines that the rear tag label output wavelength of the optical signal has been erased; generating a control erasing signal wavelength label, the label is erased wavelength, particularly further comprising: an input optical signal detected by the detector front side of the label 的波长标签的频率,生成与所述输入光信号的波长标签的频率相同的控制擦除波长标签的信号。 Wavelength of a frequency tag, the tag generates a signal wavelength of the same frequency as the input optical signal wavelength label control erased.
2. 如权利要求1所述的方法,其特征在于, 通过前侧分光耦合器从输入光信号中分出一部分输出给前侧标签检测器,由所述前侧标签检测器检测分出的所述输入光信号中的波长标签; 通过后侧分光耦合器从所述输出光信号中分出一部分输出给后侧标签检测器,由所述后侧标签检测器检测分出的所述输出光信号中的波长标签。 2. The method of claim 1, separated by the front-side detector detects the tag, characterized in that the dichroic coupler to separate the part of the front side of the tag output from the input optical signal detector through the front side, said input optical signal in the wavelength label; through the rear side of the dichroic coupler separated and a part of the output optical signal output from the detector to the rear side of the tag, the output optical signal separated by said detector detects the rear tag the wavelength label.
3. 如权利要求2所述的方法,其特征在于, 所述后侧标签检测器通过以下方式判断分出的所述输出光信号中的波长标签是否已擦除: 若所述后侧标签检测器检测不到标签的幅度、或者检测到的标签幅度在预定范围内, 则判定波长标签已擦除;否则,判定波长标签仍存在。 If the rear tag detection: The method as claimed in claim 2, wherein said rear label detector determines whether the wavelength label by way of the output optical signal separated in the erased not detected amplitude label or tag is detected within a predetermined amplitude range, it is determined that the wavelength label erased; otherwise, it is determined wavelength label remain.
4. 如权利要求1所述的方法,其特征在于, 所述波长标签的幅度是否处于拐点的判断标准,具体为:利用检测的最近三次的波长标签的幅度进行判断,如果最近三次的波长标签的幅度值不是单调的,且中间的幅度值是最小的,则判定处于谷底拐点。 4. The method according to claim 1, wherein said amplitude is in the wavelength label criteria inflection point, specifically: using amplitude detection of the last three wavelength label is determined, if the last three wavelength label not monotonic amplitude values, amplitude values ​​and the middle is the smallest, the inflection point is determined at the bottom.
5. 如权利要求3所述的方法,其特征在于,所述方法还包括: 通过所述前侧分光耦合器和后侧分光耦合器进行分光后,通过光放大器和可调光衰减器对光信号进行放大和衰减,使输出光信号和输入光信号的光功率相同。 5. The method according to claim 3, characterized in that the method further comprises: dichroic couplers and the rear side of the front side of the dichroic coupler through after splitting, by optical amplifiers and optical variable optical attenuator signal amplification and attenuation, the optical power of the optical output signal and the input optical signal are the same.
6.—种波长标签的擦除和再生装置,其特征在于,所述装置包括:擦除模块和再生模块, 所述擦除模块用于,检测输入光信号中的波长标签,并生成控制擦除波长标签的信号, 对波长标签进行擦除;检测输出光信号中的波长标签,并判断波长标签是否己擦除; 所述再生模块用于,得知波长标签已擦除后,则加载新的标签; 所述擦除模块进一步包括主控单元、前侧标签检测器和后侧标签检测器; 所述主控单元用于,根据所述后侧标签检测器输出的标签信息得知输出光信号中的波长标签还未擦除时,则判断所述输出光信号的波长标签的幅度是否处于谷底拐点,如果处于谷底拐点,则对所述控制擦除波长标签的信号进行相位调整;否则,对所述控制擦除波长标签的信号进行幅度调整,直至所述后侧标签检测器判断出输出光信号中的波长标签己擦除; 所述 6.- species erasing and reproducing apparatus of the wavelength label, characterized in that said apparatus comprising: a reproducing module and erase module, the erase module for optical wavelength label detection input signal, and generates a control wipe in addition to the signal wavelength label, the label is erased wavelength; wavelength label detection output optical signal, and determines whether or not erasing has wavelength label; after the regeneration module for the wavelength label that has been erased, the new loading the label; the erase module further includes a main control unit, a front side and a rear side of the tag label detector detector; for the master unit, according to the tag information that the output light of the rear tag detector output wavelength tag signal has not been erased, it is determined that the amplitude of the output signal light wavelength of the label is at the bottom of the inflection point, if the inflection point is in the bottom, the label is erased signal wavelength control the phase adjustment; otherwise, said; the erase control signal amplitude adjustment is the wavelength label until the label detector determines that the rear output optical signal has a wavelength erase the label 成控制擦除波长标签的信号,对波长标签进行擦除,具体还包括: 根据所述前侧标签检测器检测到的输入光信号的波长标签的频率,生成与所述输入光信号的波长标签的频率相同的控制擦除波长标签的信号。 A wavelength control signal to erase the label, the label is erased wavelength, particularly further comprising: detecting an input optical signal to the wavelength of the frequency of the tag, generating the input optical signal wavelength label tag according to the front-side detector erasing the same frequency of the control signal wavelength tag.
7. 如权利要求6所述的装置,其特征在于,所述擦除模块进一步包括前侧分光鍋合器、 后侧分光耦合器、光放大器、可调光衰减器、可调相位滞后器和波形发生器, 所述前侧分光耦合器、光放大器、可调光衰减器和后侧分光耦合器依次相连; 所述前侧分光耦合器与所述前侧标签检测器相连,用于从输入光信号中分出一部分输出给所述前侧标签检测器,由所述前侧标签检测器检测分出的所述输入光信号中的波长标签,并输出标签信息给所述主控单元; 所述后侧分光耦合器与所述后侧标签检测器相连,用于从输出光信号中分出一部分输出给所述后侧标签检测器,由所述后侧标签检测器检测分出的所述输出光信号中的波长标签,并输出标签信息给所述主控单元; 所述主控单元分别与所述波形发生器及所述可调相位滞后器相连,所述可调相位滞后器分别 7. The apparatus according to claim 6, wherein the erase module further comprises a front side beam splitter clutch pot, rear dichroic coupler, an optical amplifier, an adjustable optical attenuator and a variable phase delay waveform generator, the front side of the dichroic coupler, an optical amplifier, an adjustable optical attenuator and rear dichroic coupler sequentially coupled; dichroic coupler coupled to the front side of the front-side tag detector for input separated part of the output optical signal to the front-side tag detector, the wavelength of the input optical signal separated label from the front side of the label detector, and outputs the tag information to the main control unit; the said rear side of the rear dichroic coupler tag detector is connected for separation of part of the optical signal output from the output to the rear tag detector, separated by a tag detector detects the rear the output optical signal wavelength label, and outputs the tag information to the main control unit; the main control unit connected to the adjustable waveform generator and the phase lag, respectively, the adjustable phase delay respectively 所述波形发生器及所述可调光衰减器相连;所述主控单元根据所述前侧标签检测器输出的标签信息中的输入光信号的波长标签的频率,生成与所述输入光信号的波长标签的频率相同的控制擦除波长标签的信号,并根据所述后侧标签检测器输出的标签信息,控制所述可调相位滞后器和/或所述波形发生器对所述控制擦除波长标签的信号进行相位和/或幅度调整;并将调整完毕后的所述控制擦除波长标签的信号输出给所述可调光衰减器。 And said waveform generator connected to said variable optical attenuator; optical signal according to the frequency of the master unit wavelength of the input optical signal the tag label tag information of the front side of the detector output, and generating the input the same frequency as the wavelength of the control tag label erasing signal wavelength, and outputs, according to the rear label tag information detector, controlling the adjustable phase delay and / or the control of the wipe waveform generator in addition to the signal wavelength label phase and / or amplitude adjustment; adjustment is completed and the control of the erasing signal to the tag output wavelength variable optical attenuator.
8. 如权利要求7所述的装置,其特征在于, 所述后侧标签检测器通过以下方式判断分出的所述输出光信号中的波长标签是否已擦除: 若所述后侧标签检测器检测不到标签的幅度、或者检测到的标签幅度在预定范围内, 则判定波长标签已擦除;否则,判定波长标签仍存在。 If the rear tag detection: 8. The apparatus of claim 7, wherein said rear label detector determines whether the wavelength label by way of the output optical signal separated in the erased not detected amplitude label or tag is detected within a predetermined amplitude range, it is determined that the wavelength label erased; otherwise, it is determined wavelength label remain.
9.如权利要求6、7或8所述的装置,其特征在于,所述再生模块进一步包括标签加载单元和控制单元, 所述主控单元用于,通知所述控制单元波长标签已擦除,并传送给控制单元加载新的标签的内容; 所述控制单元用于,根据所述主控单元的通知,得知波长标签已擦除,并接收主控单元传送的新的标签的内容,控制所述标签加载单元加载新的标签。 9. The apparatus of claim 6, 7 or claim 8, wherein said reproduction module further comprises a label loading unit and a control unit for the master unit, the control unit notifies the wavelength label is erased and transmitted to the control unit loads the contents of a new label; a control unit for, according to the notification of the control element, that the wavelength label is erased, the contents of the new master unit and receives a tag transmission, controlling said label loading unit loading a new label.
10.如权利要求7所述的装置,其特征在于, 所述主控单元判断所述波长标签的幅度是否处于拐点的判断标准,具体为:利用检测的最近三次的波长标签的幅度进行判断,如果最近三次的波长标签的幅度值不是单调的, 且中间的幅度值是最小的,则判定处于谷底拐点。 10. The apparatus according to claim 7, characterized in that, the main control unit judges that the amplitude of the wavelength label is at the inflection point criteria, in particular: the use of the amplitude of the last three of the wavelength label detected to judge, If the amplitude of the last three wavelength label value is not monotonic, and the middle amplitude value is the smallest, the inflection point is determined at the bottom.
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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1584649A (en) * 2004-06-03 2005-02-23 清华大学 Light label scraping wave filter based on optical fibre environment
CN101005330A (en) * 2006-12-30 2007-07-25 电子科技大学 Light grouping exchange method based on serial arrangement light orthogonal code label
CN101026892A (en) * 2006-12-30 2007-08-29 电子科技大学 Label and pay load separating method for optical packet exchange
CN101394232A (en) * 2007-12-17 2009-03-25 北京邮电大学 Device and method based on inserting and erasing of SOA-MZI optical cursor
CN102035603A (en) * 2010-12-09 2011-04-27 北京邮电大学 Method and device for erasing and interposing D8PSK/ASK orthogonal optical label based on EAM

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5662439A (en) * 1979-10-29 1981-05-28 Nec Corp Erase system for pilot signal
US4580284A (en) * 1984-06-15 1986-04-01 Motorola, Inc. Pilot tone cancelling circuit for AM stereo decoder
JPH0683161B2 (en) * 1987-07-01 1994-10-19 松下電器産業株式会社 Pilot signal removal circuit
JPS6448737A (en) * 1987-08-14 1989-02-23 Minami Machine Separated stacking device for veneer
US20090207790A1 (en) * 2005-10-27 2009-08-20 Qualcomm Incorporated Method and apparatus for settingtuneawaystatus in an open state in wireless communication system
US20100098042A1 (en) * 2008-10-21 2010-04-22 Paul Wilkinson Dent Using the same multiplexed radio resource for pilot and information signals

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1584649A (en) * 2004-06-03 2005-02-23 清华大学 Light label scraping wave filter based on optical fibre environment
CN101005330A (en) * 2006-12-30 2007-07-25 电子科技大学 Light grouping exchange method based on serial arrangement light orthogonal code label
CN101026892A (en) * 2006-12-30 2007-08-29 电子科技大学 Label and pay load separating method for optical packet exchange
CN101394232A (en) * 2007-12-17 2009-03-25 北京邮电大学 Device and method based on inserting and erasing of SOA-MZI optical cursor
CN102035603A (en) * 2010-12-09 2011-04-27 北京邮电大学 Method and device for erasing and interposing D8PSK/ASK orthogonal optical label based on EAM

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