CN2485873Y - 一种光电接发收器 - Google Patents

一种光电接发收器 Download PDF

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Publication number
CN2485873Y
CN2485873Y CN01238396.1U CN01238396U CN2485873Y CN 2485873 Y CN2485873 Y CN 2485873Y CN 01238396 U CN01238396 U CN 01238396U CN 2485873 Y CN2485873 Y CN 2485873Y
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CN
China
Prior art keywords
emitting device
utility
wdm
model
beam split
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.)
Expired - Fee Related
Application number
CN01238396.1U
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English (en)
Inventor
吴砺
凌吉武
洪志国
吴汉琪
詹翠莲
黄建权
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Casix Inc
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Casix Inc
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Publication date
Application filed by Casix Inc filed Critical Casix Inc
Priority to CN01238396.1U priority Critical patent/CN2485873Y/zh
Application granted granted Critical
Publication of CN2485873Y publication Critical patent/CN2485873Y/zh
Priority to US10/167,009 priority patent/US20020191917A1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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
    • G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
    • G02B6/293—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means
    • G02B6/29346—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means operating by wave or beam interference
    • G02B6/29361—Interference filters, e.g. multilayer coatings, thin film filters, dichroic splitters or mirrors based on multilayers, WDM filters
    • 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
    • G02B6/32—Optical coupling means having lens focusing means positioned between opposed fibre ends
    • 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
    • G02B6/4214—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms the intermediate optical element having redirecting reflective means, e.g. mirrors, prisms for deflecting the radiation from horizontal to down- or upward direction toward a device
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/40—Transceivers

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Optical Couplings Of Light Guides (AREA)

Abstract

本实用新型公开了一种光电接发收器,该结构的波分复用器为带WDM膜夹层的两个球冠组成的分光胶合透镜,其光学设计简洁,整体安装配合紧密,体积较小,价格较低。

Description

一种光电接发收器
本实用新型属光纤通讯领域，尤其涉及光无源器件领域。
在光纤通讯中，光电接发收器是光纤进入家庭的一种重要器件。如图1所示，其主要由发射端11、波分复用器12、光纤传输线13及接受端14组成。λ1为发射信号的激光波长，λ2为接受信号的激光波长，信号从发射端11发出通过波分复用膜片组成的波分复用器12进入光纤接受端14，接收其信号。一般来说，发射端11是通过半导体激光器，接受端14为光电二极管探测器将光信号转化为电信号，实现信号的接发收功能。目前这样器件对普通家庭而言，价格过于昂贵，且体积较大。
本实用新型的目的在于提供一种光学设计简洁，体积较小，且价格较低的光电接发收器。
为达到上述目的，本实用新型主要包括半导体激光器、光电探测器、单模光纤、波分复用器及外壳，该波分复用器为带WDM膜夹层的两个球冠组成的分光胶合透镜。
当采用上述结构后，从单模光纤发射的波长为λ2的信号光被WDM膜发射，再次返回分光胶合透镜，经会聚后为光电探测器接受，该结构的光学设计简洁，整体安装配合紧密，与习用产品相比，体积较小，价格较低。
以下结合附图及实施例对本实用新型做进一步的详述。
图1是可用产品的结构示意图；
图2是本实用新型的光路结构图；
图3是本实用新型的结构图。
请参阅图2所示，分光胶合透镜2分为两部分，是由带WDM膜203夹层的球冠201、202粘结而成，该WDM膜203亦可镀于分光胶合镜2的一个球冠的平面。半导体激光器1发射波长为λ1的信号光，分光胶合透镜2中WDM膜203透射λ1，由于分光胶合透镜2对λ1仍是一个厚透镜，所以分光胶合透镜2将从半导体激光器1发射λ1光会聚进入单模光纤4中。从单模光纤4发出波长为λ2的信号光，而分光胶合透镜2中所含WDM膜对λ2反射，由镜面对称原理，经过WDM膜203反射λ2再次返回球冠202，其光路同通过一个球透镜等效。从球冠202出射光再次会聚，为光电探测器3所接受。
本实用新型由于采用两个光学球冠加中间WDM膜203形成分光胶合透镜2，使λ2光再次聚焦从而使λ2光几乎100％被光电探测器3接受，设计时可以将光电检测器3、半导体激光器1与分光胶合透镜2的距离基本相等，几乎贴近分光胶合透镜2，使安装尺寸几乎到最小的极限，同时，单膜光纤线4接受λ1亦可达到较高效率，这样，整体的配合紧密，体积较小。
本实用新型从单模光纤4发射激光的中心线与WDM膜法线夹角可根据实际使用对偏振相关损耗PDL要求是否严格而选择设计，如果对PDL无任何要求，则可取入射角为45°，这使安装光电探测器3方便；如对PDL要求较严格，而使入射角为10°～15°左右。
又请参阅图3所示，本实用新型由半导体激光器1、分光胶合透镜2、光电探测器3、单模光纤4、外壳5、环氧或焊层6组成。单模光纤4由光纤头401、光纤护套402、光纤线403组成。

Claims (4)

1、一种光电接发收器，主要包括半导体激光器、光电探测器、单模光纤、波分复用器及外壳，其特征在于：波分复用器为带WDM膜夹层的两个球冠组成的分光胶合透镜。
2、如权利要求1所述的一种光电接发收器，其特征在于：该分光胶合透镜的WDM膜镀于其中一个球冠的平面。
3、如权利要求1，2所述的一种光电接发收器，其特征在于：单模光纤发射的激光的中心线与WDM膜法线的夹角为45°。
4、如权利要求1，2所述的一种光电接发收器，其特征在于：单模光纤发射的激光的中心线与WDM膜法线的夹角为10°～15°。
CN01238396.1U 2001-06-18 2001-06-18 一种光电接发收器 Expired - Fee Related CN2485873Y (zh)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN01238396.1U CN2485873Y (zh) 2001-06-18 2001-06-18 一种光电接发收器
US10/167,009 US20020191917A1 (en) 2001-06-18 2002-06-11 Transceiver device for transmitting and receiving optical signals

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN01238396.1U CN2485873Y (zh) 2001-06-18 2001-06-18 一种光电接发收器

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CN2485873Y true CN2485873Y (zh) 2002-04-10

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101825748B (zh) * 2009-03-06 2012-06-27 深圳新飞通光电子技术有限公司 一种光网络终端用光接收组件

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Publication number Priority date Publication date Assignee Title
US6879784B1 (en) * 2001-09-13 2005-04-12 Thomas H. Blair Bi-directional optical/electrical transceiver module
US6937791B2 (en) * 2003-05-02 2005-08-30 The Boeing Company Optical coupling apparatus and method
US9195015B2 (en) * 2011-06-29 2015-11-24 Source Photonics, Inc. Bi-directional fiber optic transceivers, housings therefor, and methods for making and using the same
CN104579472B (zh) * 2013-10-28 2017-09-05 华为技术有限公司 提升消光比的装置
US9658404B2 (en) * 2015-04-14 2017-05-23 Honeywell International Inc. Optical bench

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DE3232793A1 (de) * 1982-09-03 1984-03-08 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Optisches koppelglied
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US6123465A (en) * 1996-03-21 2000-09-26 Nippon Sheet Glass Company Ltd Optical module
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101825748B (zh) * 2009-03-06 2012-06-27 深圳新飞通光电子技术有限公司 一种光网络终端用光接收组件

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C19 Lapse of patent right due to non-payment of the annual fee
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