CN102401947A - 单纤器件 - Google Patents

单纤器件 Download PDF

Info

Publication number
CN102401947A
CN102401947A CN2011103739897A CN201110373989A CN102401947A CN 102401947 A CN102401947 A CN 102401947A CN 2011103739897 A CN2011103739897 A CN 2011103739897A CN 201110373989 A CN201110373989 A CN 201110373989A CN 102401947 A CN102401947 A CN 102401947A
Authority
CN
China
Prior art keywords
light
birefringent plate
plate
optical splitter
wavelength
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN2011103739897A
Other languages
English (en)
Inventor
曾同新
张学明
李生
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huawei Technologies Co Ltd
Original Assignee
Huawei Technologies Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Priority to CN2011103739897A priority Critical patent/CN102401947A/zh
Publication of CN102401947A publication Critical patent/CN102401947A/zh
Priority to EP12852059.0A priority patent/EP2685300B1/en
Priority to PCT/CN2012/085021 priority patent/WO2013075637A1/zh
Priority to US14/077,936 priority patent/US9110262B2/en
Pending legal-status Critical Current

Links

Images

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/42—Coupling light guides with opto-electronic elements
    • G02B6/4201—Packages, e.g. shape, construction, internal or external details
    • G02B6/4246—Bidirectionally operating package structures
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/26—Optical coupling means
    • G02B6/27—Optical coupling means with polarisation selective and adjusting means
    • G02B6/2746—Optical coupling means with polarisation selective and adjusting means comprising non-reciprocal devices, e.g. isolators, FRM, circulators, quasi-isolators
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/09—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on magneto-optical elements, e.g. exhibiting Faraday effect
    • G02F1/095—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on magneto-optical elements, e.g. exhibiting Faraday effect in an optical waveguide structure
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
    • G02B6/12—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind
    • G02B2006/12083—Constructional arrangements
    • G02B2006/12116—Polariser; Birefringent
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/26—Optical coupling means
    • G02B6/27—Optical coupling means with polarisation selective and adjusting means
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/26—Optical coupling means
    • G02B6/27—Optical coupling means with polarisation selective and adjusting means
    • G02B6/2706—Optical coupling means with polarisation selective and adjusting means as bulk elements, i.e. free space arrangements external to a light guide, e.g. polarising beam splitters
    • G02B6/2713—Optical coupling means with polarisation selective and adjusting means as bulk elements, i.e. free space arrangements external to a light guide, e.g. polarising beam splitters cascade of polarisation selective or adjusting operations
    • G02B6/272—Optical coupling means with polarisation selective and adjusting means as bulk elements, i.e. free space arrangements external to a light guide, e.g. polarising beam splitters cascade of polarisation selective or adjusting operations comprising polarisation means for beam splitting and combining
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/26—Optical coupling means
    • G02B6/27—Optical coupling means with polarisation selective and adjusting means
    • G02B6/2753—Optical coupling means with polarisation selective and adjusting means characterised by their function or use, i.e. of the complete device
    • G02B6/2773—Polarisation splitting or combining
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/26—Optical coupling means
    • G02B6/27—Optical coupling means with polarisation selective and adjusting means
    • G02B6/2753—Optical coupling means with polarisation selective and adjusting means characterised by their function or use, i.e. of the complete device
    • G02B6/278—Controlling polarisation mode dispersion [PMD], e.g. PMD compensation or emulation
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/26—Optical coupling means
    • G02B6/27—Optical coupling means with polarisation selective and adjusting means
    • G02B6/2753—Optical coupling means with polarisation selective and adjusting means characterised by their function or use, i.e. of the complete device
    • G02B6/2793—Controlling polarisation dependent loss, e.g. polarisation insensitivity, reducing the change in polarisation degree of the output light even if the input polarisation state fluctuates
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/42—Coupling light guides with opto-electronic elements
    • G02B6/4201—Packages, e.g. shape, construction, internal or external details
    • G02B6/4204—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms
    • G02B6/4207—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms with optical elements reducing the sensitivity to optical feedback
    • G02B6/4208—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms with optical elements reducing the sensitivity to optical feedback using non-reciprocal elements or birefringent plates, i.e. quasi-isolators
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/42—Coupling light guides with opto-electronic elements
    • G02B6/4201—Packages, e.g. shape, construction, internal or external details
    • G02B6/4204—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms
    • G02B6/4213—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms the intermediate optical elements being polarisation selective optical elements
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/42—Coupling light guides with opto-electronic elements
    • G02B6/4201—Packages, e.g. shape, construction, internal or external details
    • G02B6/4204—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms
    • G02B6/4215—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms the intermediate optical elements being wavelength selective optical elements, e.g. variable wavelength optical modules or wavelength lockers
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/09—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on magneto-optical elements, e.g. exhibiting Faraday effect
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/09—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on magneto-optical elements, e.g. exhibiting Faraday effect
    • G02F1/095—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on magneto-optical elements, e.g. exhibiting Faraday effect in an optical waveguide structure
    • G02F1/0955—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on magneto-optical elements, e.g. exhibiting Faraday effect in an optical waveguide structure used as non-reciprocal devices, e.g. optical isolators, circulators

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Nonlinear Science (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Optical Couplings Of Light Guides (AREA)

Abstract

本发明公开了一种单纤器件，涉及光通信技术领域，达到较大的发射光功率及接受灵敏度。该单纤器件，包括用于接收入射光的第一光电二极管和用于发射出射光的激光二极管，还包括：具有一正方向的同波长分光器，包括沿正方向依次设置且垂直于正方向的第一双折射片、半波片、45°法拉第旋转片以及与第一双折射片相同的第二双折射片；第一双折射片的光轴与正方向之间的夹角为α，0°＜α＜90°；半波片的e轴与第一双折射片主截面之间的角度为β，β＝67.5°或β＝22.5°；入射光沿正方向通过同波长分光器；出射光沿与正方向相反的方向通过同波长分光器；出射光为偏振方向垂直于第一双折射片的主截面的线偏振光。

Description

单纤器件
技术领域
本发明涉及光通信技术领域，尤其涉及一种单纤器件。
背景技术
目前，在无源光纤网络(Passive Optical Network，PON)系统中，同波长单纤双向的收发，也就是相同波长的光通过同一个光纤实现接收和发射光路的分离是一个比较难解决的问题。现有技术如图1所示，滤波片为部分透过部分反射滤波片，使得一个方向上的光直接透射通过滤波片，而另一个方向上的光在滤波片处反射，从而改变光路，进而使相同波长的光通过同一个光纤实现接收和发射光路的分离。
然而，使用部分透过部分反射滤波片，会损失光器件的发射光功率及接收灵敏度。
发明内容
本发明的实施例提供一种单纤器件，达到较高的发射光功率及接收灵敏度。
为解决上述技术问题，本发明的实施例采用如下技术方案：
一种单纤器件，包括用于接收入射光的第一光电二极管和用于发射出射光的激光二极管，还包括：
具有一正方向的同波长分光器，包括沿所述正方向依次设置且垂直于所述正方向的第一双折射片、半波片、45°法拉第旋转片以及与所述第一双折射片相同的第二双折射片；
所述第一双折射片的光轴与所述正方向之间的夹角为α，0°＜α＜90°；
所述半波片的e轴与所述第一双折射片主截面之间的角度为β，β＝67.5°或β＝22.5°；
所述入射光沿所述正方向通过所述同波长分光器；
所述出射光沿与所述正方向相反的方向通过所述同波长分光器；
所述出射光为偏振方向垂直于所述第一双折射片的主截面的线偏振光。
通过上述同波长分光器，可实现接收和发射光路的分离，与现有技术相比，无需使用部分透射部分反射滤波片，从而实现同波长单纤双向理论上的无损传输，达到较高的发射光功率及接收灵敏度。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为现有技术中部分透过部分反射滤波片实现光路分离的示意图；
图2为本发明实施例一中一种单纤器件的示意图；
图3为图2中出射光的光路示意图；
图4为本发明实施例二中一种单纤器件的示意图；
图5为本发明实施例三中一种单纤器件的示意图；
图6为本发明实施例四中一种单纤器件的示意图；
图7为本发明实施例四中另一种单纤器件的示意图。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
实施例一
本发明实施例提供一种单纤器件，如图2所示，包括用于接收入射光21的第一光电二极管2(Photo Diode，PD)和用于发射出射光的激光二极管3(LaserDiode，LD)，还包括：具有一正方向(即z轴正向)的同波长分光器1，包括沿正方向(即z轴正向)依次设置且垂直于正方向(即z轴)的第一双折射片11、半波片12、45°法拉第旋转片13以及与第一双折射片11相同的第二双折射片14；第一双折射片11的光轴与正方向(即z轴正向)之间的夹角为α，0°＜α＜90°；半波片12的e轴与第一双折射片11主截面(即zy平面)之间的角度为β，β＝67.5°或β＝22.5°。
以下以β＝67.5°为例介绍入射光与出射光光路的分离原理，此时45°法拉第旋转片13对应设置为：从z轴正向看，使通过45°法拉第旋转片13的线偏振光的偏振方向顺时针旋转45°。一方面，入射光21沿正方向(即z轴正向)通过同波长分光器1；入射光21为任意偏振态的光线，经过第一双折射片11时分解为正交的两束线偏振光，其中一束为偏振方向垂直于yz平面的o光，另一束为偏振方向平行于yz平面的e光，o光直接通过第一双折射片11，而e光偏移一定距离后通过第一双折射片11，经过半波片12时，o光与e光的偏振方向分别变为与半波片12的e轴对称的方向，即从z轴正向看，o光与e光的偏振方向都顺时针旋转了45°，从z轴正向看，o光与e光经过45°法拉第旋转片13后，偏振方向都顺时针旋转45°；即o光的偏振方向一共旋转了90°，变为平行于yz平面的光，e光的偏振方向一共旋转了90°，变为垂直于yz平面的光，在经过第二双折射片14时，由于第二双折射片14与第一双折射片11相同，其光轴与正方向(即z轴正向)之间的夹角同样为α，e光直接通过第二双折射片14，而o光偏移一定距离后与e光合为入射光21，从而改变了沿正方向通过同波长分光器1的入射光21的光路。
另一方面，如图3所示，激光二极管3发射的出射光31沿与正方向相反的方向(即z轴的负方向)通过同波长分光器1；出射光31为偏振方向垂直于第一双折射片的主截面(即yz平面)的线偏振光。出射光31直接通过第二双折射片14，经过45°法拉第旋转片13后，从z轴正向看，出射光31的偏振方向顺时针旋转了45°，经过半波片12时，出射光31的偏振方向变为与半波片12的e轴对称的方向，即从z轴正向看，出射光31的偏振方向逆时针旋转了45°。即出射光31的偏振方向又变为垂直于yz平面，之后直接通过第一双折射片11。沿与正方向相反的方向通过同波长分光器1的出射光31的光路没有改变。
与上述半波片12的e轴与第一双折射片11主截面(即zy平面)之间的角度β＝67.5°时类似，当β＝22.5°时，45°法拉第旋转片13对应设置为：从z轴正向看，使通过45°法拉第旋转片13的线偏振光的偏振方向逆时针旋转45°。o光与e光经过半波片12后，从z轴正向看，o光与e光的偏振方向都逆时针旋转了45°，45°法拉第旋转片13对应β＝22.5°设置，从z轴正向看，使o光与e光经过45°法拉第旋转片13后，偏振方向都逆时针旋转了45°。同样使o光的偏振方向一共旋转90°，变为平行于yz平面的光，e光的偏振方向一共旋转90°，变为垂直于yz平面的光，从而改变了沿正方向通过同波长分光器1的入射光21的光路。另一方面，出射光31直接通过第二双折射片14，经过45°法拉第旋转片13后，从z轴正向看，出射光31的偏振方向逆时针旋转了45°，经过半波片12时，出射光31的偏振方向变为与半波片12的e轴对称的方向，即从z轴正向看，出射光31的偏振方向顺时针旋转了45°，同样使出射光31的偏振方向又变为垂直于yz平面，之后直接通过第一双折射片11。沿与正方向相反的方向通过同波长分光器1的出射光31的光路没有改变。
综上所述，在光纤和LD与PD之间设置上述同波长分光器，可实现接收和发射光路的分离，与现有技术相比，无需使用部分透射部分反射滤波片，从而实现同波长单纤双向理论上的无损传输，达到较高的发射光功率及接收灵敏度。
实施例二
基于实施例一，本发明实施例提供一种单纤器件，如图4所示，还包括：收发管芯4(Transistor Outline，TO)，用于将第一光电二极管2和激光二极管3封装在一起。同波长分光器1的结构与原理与实施例一相同，在此不再赘述。优选地，上述第一双折射片的光轴与正方向之间的夹角α＝47.85°，使入射光偏移的距离较大。
实现将LD和PD封装在同一个TO中的单纤双向器件，并且通过上述同波长分光器，可实现接收和发射光路的分离，与现有技术相比，无需使用部分透射部分反射滤波片，从而实现同波长单纤双向理论上的无损传输，达到较高的发射光功率及接收灵敏度。并且由于不需要滤波片，从而减少了反射产生杂散光带来的光串扰。
实施例三
基于实施例一，本发明实施例提供一种单纤器件，如图5所示，还包括：设置在第一光电二极管2与同波长分光器1之间的入射光光路上的反射镜5，用于反射通过同波长分光器1的入射光，使第一光电二极管2接收入射光；第一接收管芯22，用于封装第一光电二极管2；发射管芯32，用于封装激光二极管3。同波长分光器1的结构与原理与实施例一相同，在此不再赘述。
实现了同波长单纤双向光器件(Bi-Direction Optical Sub-Assembly，BOSA)，并且通过上述同波长分光器，可实现接收和发射光路的分离，与现有技术相比，无需使用部分透射部分反射滤波片，从而实现同波长单纤双向理论上的无损传输，达到较高的发射光功率及接收灵敏度。
实施例四
基于实施例二或实施例三，本发明实施例提供一种单纤器件，如图6所示，还包括：第二光电二极管6，用于接收特定波长的光；特定波长滤波片61，用于使特定波长的光反射，其他波长的光透射；第二接收管芯62，用于封装第二光电二极管6；特定波长滤波片61和同波长分光器1沿正方向依次设置。其他结构与实施例二相同，或者如图7所示，与实施例三相同。光纤7传输的特定波长的光在特定波长滤波片61处反射，至第二光电二极管6处被接收，而另外的同波长的光直接通过特定波长滤波片61，具体的结构与原理与上述实施例相同，在此不再赘述。
实现了二波长单纤双向器件，并且通过上述同波长分光器，可实现接收和发射光路的分离，与现有技术相比，无需使用部分透射部分反射滤波片，从而实现同波长单纤双向理论上的无损传输，达到较高的发射光功率及接收灵敏度。
以上所述，仅为本发明的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本发明的保护范围之内。因此，本发明的保护范围应以所述权利要求的保护范围为准。

Claims (5)

1.一种单纤器件，包括用于接收入射光的第一光电二极管和用于发射出射光的激光二极管，其特征在于，还包括：
具有一正方向的同波长分光器，包括沿所述正方向依次设置且垂直于所述正方向的第一双折射片、半波片、45°法拉第旋转片以及与所述第一双折射片相同的第二双折射片；
所述第一双折射片的光轴与所述正方向之间的夹角为α，0°＜α＜90°；
所述半波片的e轴与所述第一双折射片主截面之间的角度为β，β＝67.5°或β＝22.5°；
所述入射光沿所述正方向通过所述同波长分光器；
所述出射光沿与所述正方向相反的方向通过所述同波长分光器；
所述出射光为偏振方向垂直于所述第一双折射片的主截面的线偏振光。
2.根据权利要求1所述的单纤器件，其特征在于，
所述第一双折射片的光轴与所述正方向之间的夹角为α＝47.85°。
3.根据权利要求2所述的单纤器件，其特征在于，还包括：
收发管芯，用于将所述第一光电二极管和激光二极管封装在一起。
4.根据权利要求2所述的单纤器件，其特征在于，还包括：
设置在所述第一光电二极管与所述同波长分光器之间的入射光光路上的反射镜；
第一接收管芯，用于封装所述第一光电二极管；
发射管芯，用于封装所述激光二极管。
5.根据权利要求3或4所述的单纤器件，其特征在于，还包括：
特定波长滤波片，用于使特定波长的光反射，其他波长的光透射；
第二光电二极管，用于接收所述特定波长的光；
第二接收管芯，用于封装所述第二光电二极管；
所述特定波长滤波片和同波长分光器沿所述正方向依次设置。
CN2011103739897A 2011-11-22 2011-11-22 单纤器件 Pending CN102401947A (zh)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CN2011103739897A CN102401947A (zh) 2011-11-22 2011-11-22 单纤器件
EP12852059.0A EP2685300B1 (en) 2011-11-22 2012-11-22 Single fibre device
PCT/CN2012/085021 WO2013075637A1 (zh) 2011-11-22 2012-11-22 单纤器件
US14/077,936 US9110262B2 (en) 2011-11-22 2013-11-12 Single-fiber subassembly

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011103739897A CN102401947A (zh) 2011-11-22 2011-11-22 单纤器件

Publications (1)

Publication Number Publication Date
CN102401947A true CN102401947A (zh) 2012-04-04

Family

ID=45884340

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011103739897A Pending CN102401947A (zh) 2011-11-22 2011-11-22 单纤器件

Country Status (4)

Country Link
US (1) US9110262B2 (zh)
EP (1) EP2685300B1 (zh)
CN (1) CN102401947A (zh)
WO (1) WO2013075637A1 (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013075637A1 (zh) * 2011-11-22 2013-05-30 华为技术有限公司 单纤器件
CN104838605A (zh) * 2013-12-03 2015-08-12 华为技术有限公司 一种光收发器及处理光信号的方法

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106547055B (zh) * 2015-09-23 2019-04-16 青岛海信宽带多媒体技术有限公司 一种光探测模组和光模块
US9952387B2 (en) * 2016-09-02 2018-04-24 Acme Microsystem Inc. Optical fiber transmission system with a laser beam splitting and combining device
CN115166911A (zh) * 2021-04-01 2022-10-11 讯芸电子科技(中山)有限公司 晶体管外形封装光收发器

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54159245A (en) * 1978-06-06 1979-12-15 Mitsubishi Electric Corp Optical device
JPH07253559A (ja) * 1994-03-16 1995-10-03 Fujitsu Ltd 双方向光通信装置
US20030184861A1 (en) * 2002-03-27 2003-10-02 Shin-Etsu Chemical Co., Ltd. Optical isolator
US20050018967A1 (en) * 2002-07-10 2005-01-27 Yonglin Huang Plug-in module for providing bi-directional data transmission
US7039278B1 (en) * 2002-07-10 2006-05-02 Finisar Corporation Single-fiber bi-directional transceiver
US20080042050A1 (en) * 2006-08-14 2008-02-21 Fujitsu Limited Of Polarization independent optical isolator and optical transmitting/receiving apparatus
US20100201969A1 (en) * 2006-02-13 2010-08-12 Yingyin Kevin Zou Polarization Imaging Apparatus with Auto-Calibration

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1253726A (en) * 1982-06-28 1989-05-09 Masataka Shirasaki Polarization rotation compensator and optical isolator using the same
JPH063622A (ja) * 1992-06-19 1994-01-14 Mitsubishi Gas Chem Co Inc 偏波無依存型光アイソレータ
US6239900B1 (en) * 1997-09-19 2001-05-29 Nz Applied Technologies Corp. Reflective fiber-optic isolator
CN1299472A (zh) * 1998-04-08 2001-06-13 科英应用技术公司 高速电光调制器
US6137619A (en) * 1998-04-08 2000-10-24 Nz Applied Technologies, Incorporated High-speed electro-optic modulator
JP2000066137A (ja) * 1998-08-19 2000-03-03 Fujitsu Ltd 光アイソレータとして使用可能な光デバイス並びに該光デバイスを含む光増幅器及びシステム
US20040184148A1 (en) * 2001-05-21 2004-09-23 Jds Uniphase Corporation Integrated micro-optic architecture for combining and depolarizing plural polarized laser beams
CN2485662Y (zh) * 2001-06-11 2002-04-10 福建华科光电有限公司 一种新型的光纤隔离器
JP2003066284A (ja) * 2001-08-23 2003-03-05 Sumitomo Metal Mining Co Ltd 光アイソレータモジュール
US20040086214A1 (en) * 2002-07-10 2004-05-06 Finisar Corporation Optical circulator for bi-directional communication
US7218436B2 (en) * 2003-08-08 2007-05-15 General Photonics Corporation Optical instrument and measurements using multiple tunable optical polarization rotators
JP4714811B2 (ja) * 2004-02-26 2011-06-29 並木精密宝石株式会社 光アイソレータ及び光学装置
CN102183828A (zh) * 2011-06-02 2011-09-14 平湖中天合波通信科技有限公司 一种单纤双向组件
CN102401947A (zh) * 2011-11-22 2012-04-04 华为技术有限公司 单纤器件

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54159245A (en) * 1978-06-06 1979-12-15 Mitsubishi Electric Corp Optical device
JPH07253559A (ja) * 1994-03-16 1995-10-03 Fujitsu Ltd 双方向光通信装置
US20030184861A1 (en) * 2002-03-27 2003-10-02 Shin-Etsu Chemical Co., Ltd. Optical isolator
US20050018967A1 (en) * 2002-07-10 2005-01-27 Yonglin Huang Plug-in module for providing bi-directional data transmission
US7039278B1 (en) * 2002-07-10 2006-05-02 Finisar Corporation Single-fiber bi-directional transceiver
US20100201969A1 (en) * 2006-02-13 2010-08-12 Yingyin Kevin Zou Polarization Imaging Apparatus with Auto-Calibration
US20080042050A1 (en) * 2006-08-14 2008-02-21 Fujitsu Limited Of Polarization independent optical isolator and optical transmitting/receiving apparatus

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013075637A1 (zh) * 2011-11-22 2013-05-30 华为技术有限公司 单纤器件
US9110262B2 (en) 2011-11-22 2015-08-18 Huawei Technologies Co., Ltd. Single-fiber subassembly
CN104838605A (zh) * 2013-12-03 2015-08-12 华为技术有限公司 一种光收发器及处理光信号的方法
CN104838605B (zh) * 2013-12-03 2017-02-01 华为技术有限公司 一种光收发器及处理光信号的方法

Also Published As

Publication number Publication date
EP2685300B1 (en) 2017-01-18
EP2685300A1 (en) 2014-01-15
US9110262B2 (en) 2015-08-18
EP2685300A4 (en) 2014-08-20
WO2013075637A1 (zh) 2013-05-30
US20140064657A1 (en) 2014-03-06

Similar Documents

Publication Publication Date Title
CN104459904B (zh) 一种单纤双向bosa结构
CN204925459U (zh) 一种多波长单纤双向光收发模块
CN102401947A (zh) 单纤器件
CN102364364B (zh) 单波长单纤双向光收发模块组件
CN103163594A (zh) 具有多个光源的光学模块
CN103502859A (zh) 多通道光发射器件及其制造和使用方法
CN103543503B (zh) 一种具有基于全内反射表面的单体光学模块的光学装置
CN105717589A (zh) 一种单光口多路并行光发射组件
CN104991320A (zh) 一种多波长单纤双向光收发模块及其工作方法
US9645315B2 (en) Multiplexer
CN102859433A (zh) 光开关
CN102183828A (zh) 一种单纤双向组件
CN102621643A (zh) 单芯双向光通信模块及其制造方法
CN104597569A (zh) 波分复用/解复用器以及光发射组件
CN104133273A (zh) 一种单纤双向光收发组件
CN106646757A (zh) 多路复用器及其合光方法
CN102656502B (zh) 光模块
CN202693864U (zh) 一种光电接收模块结构
CN104460009B (zh) 一种合波器
CN102681111A (zh) 一种解波分复用光电接收模块
CN104838605B (zh) 一种光收发器及处理光信号的方法
CN110531469B (zh) 单纤双向光模块
CN103149633A (zh) 一种双偏振态信号处理集成芯片
CN202771056U (zh) 光收发次模块用楔形滤波片
CN204496045U (zh) 一种阵列型光隔离器

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C12 Rejection of a patent application after its publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20120404