CN2450678Y - 一种偏振合束器 - Google Patents

一种偏振合束器 Download PDF

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Publication number
CN2450678Y
CN2450678Y CN00240874U CN00240874U CN2450678Y CN 2450678 Y CN2450678 Y CN 2450678Y CN 00240874 U CN00240874 U CN 00240874U CN 00240874 U CN00240874 U CN 00240874U CN 2450678 Y CN2450678 Y CN 2450678Y
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buncher
polarizing
optical fiber
fixed
light
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CN00240874U
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吴砺
宁海洋
陈增平
黄雪钦
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Casix Inc
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Casix Inc
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    • 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
    • G02B6/29302—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 based on birefringence or polarisation, e.g. wavelength dependent birefringence, polarisation interferometers
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/10—Beam splitting or combining systems
    • G02B27/12—Beam splitting or combining systems operating by refraction only
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/10—Beam splitting or combining systems
    • G02B27/12—Beam splitting or combining systems operating by refraction only
    • G02B27/126—The splitting element being a prism or prismatic array, including systems based on total internal reflection
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/28—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising
    • G02B27/283—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising used for beam 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
    • G02B6/2726—Optical coupling means with polarisation selective and adjusting means in or on light guides, e.g. polarisation means assembled in a light guide
    • G02B6/274—Optical coupling means with polarisation selective and adjusting means in or on light guides, e.g. polarisation means assembled in a light guide based on light guide birefringence, e.g. due to coupling between light guides
    • 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
    • G02B6/2706—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

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lasers (AREA)
  • Optical Couplings Of Light Guides (AREA)

Abstract

一种偏振合束器,是在双光纤准直器出光端固定有屋脊棱镜,并在棱镜与单光纤准直器中间固定有双折射晶体。采用此种结构制作的偏振合束器,具有体积小、结构简单的优点,与已有技术相比大大节省了占用空间,可满足日益发展的光纤通讯领域,对元器件的要求,体积小,性能好,可广泛应用于掺铒光纤放大器(EDFA)上。本实用新型拓展了偏振合束器的应用领域。

Description

一种偏振合束器
本新型涉及一种光纤通讯领域使用的光学器件，特别涉及一种应用于光纤放大器光束合束上使用的偏振合束器。
在光无源器件中，两束光合束到同一光束通常是通过熔锥式WDM(波分复用器)或膜片式WDM，它的特点是必须不同波长的激光才能合束，而光纤放大器中为增加泵浦光则是需是同一波长的光合束。常规方式利用PBS棱镜(偏振分束棱镜)和利用两束光偏振方向相互垂直，在PBS棱镜上进行合束，见图1,101为保偏光纤制成准直器，102亦为保偏光纤制作准直器，但准直器101和准直器102出射光偏振方向相互垂直。103为PBS棱镜，准直器101光透过PBS棱镜，准直器102的出射光与准直器101光偏振方向垂直，而PBS棱镜模片反射102的出射光，从而同101准直器出射光合束。显然这种合束器两束光是合束了，但缺点是装配体积较大，不能满足日益发展的光纤通讯领域的要求。
本实用新型的目的在于：设计一种具有体积小，结构简单的偏振合束器，以满足使用者需求。
本实用新型采用如下结构实现上述目的，在双光纤准直器出光端一边固定有能使两束带夹角θ的光变为平行光的光学屋脊棱镜。光学屋脊棱镜与单模光纤准直器之间固定有入射光面与出射光面相互平行的双折射晶体，屋脊棱镜与双折射晶体直接固定在外壳上。
采用此种结构制作的，偏振合束器，可使入射的两束带夹角θ的偏振光通过本结构合为一束光。此种结构具有体现小，结构简单的优点，与已有合束器相比大大节省了占用空间，可满足日益发展的光纤通讯对元器件的要求，可广泛应用于掺铒光纤放大器(EDFA)器件上。
下面结合实施例及附图作详细说明：
图1为已有技术光学结构图。
图2为本实用新型光学结构图。
图3为本实用新型结构图。
图2中，201,202为保偏光纤，从201和202两光纤入射的光为偏振方向相互垂直的两偏振光，通过两光纤的出射光偏振方向也相互垂直。203为双光纤毛细管制成双光纤准直器，204为一光学屋脊棱镜，它将从双光纤出射光准直为两束相互平行的光。205为一双折射晶体，其入射光面与出射光面为平行面。它的作用是将两束振动方向相互垂直的偏振光合成同一束光。其原理是O光穿过晶体方向不变，e光穿过晶体在晶体内方向改变角度α，离开晶体再恢复原来光行进方向。由于光束在205内夹角α为固定，双光纤双光束出射角θ亦为固定角，调节准直器203与棱镜204之间距离204的长度L1，而变化经过棱镜204准直后的平行光距离d，使d与L2相匹配，从而使双光束正好合束为同一光束。合束后平行光被准直器206接受，准直器206的光纤线则为普通的单模光纤。
偏振合束器的机械结构图如图3所示。整个金属外壳形成密封结构；棱镜308，晶体309均直接粘结在外壳上。准直器与外壳采用金属焊锡焊接方式封装。本实施例中晶体选择YVO4、Rutile等双折射晶体。301,302保偏光纤，303,313橡皮护套，304,312锈钢金属护套，305,311为焊锡，306为双光纤准直器，307为金属外壳，308为屋脊棱镜，309为双折射晶体，310为单纤准直器，314为光纤线。
很明显，本实用新型制成偏振合束器其有体积小，结构简单的优点，将广泛用于EDFA器件上。

Claims (2)

1、一种偏振合束器，其特征在于：在双光纤准直器出光端一边固定有能使从准直器发出的带夹角θ的两束光变为平行光的光学屋脊棱镜。在光学屋脊棱镜与单模准直器之间固定有双折射晶体，屋脊棱镜与双折射晶体直接固定在壳体上。
2、根据权利要求1所述的一种偏振合束器，其特征在于：双折射晶体为出光面与入光面相互平行的双折射晶体，从双光纤准直器中入射的两束光为偏振方向相互垂直的两束偏振光，双光纤准直器中的光纤为保偏光纤。
CN00240874U 2000-11-03 2000-11-03 一种偏振合束器 Expired - Fee Related CN2450678Y (zh)

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101907749A (zh) * 2010-06-30 2010-12-08 中航光电科技股份有限公司 光纤扩束连接器
CN102621637A (zh) * 2012-04-11 2012-08-01 珠海保税区光联通讯技术有限公司 晶体保偏光耦合器及其制造方法
CN103885195A (zh) * 2014-04-11 2014-06-25 珠海保税区光联通讯技术有限公司 法拉第旋转反射镜及光纤干涉仪
CN104716561A (zh) * 2013-12-12 2015-06-17 青岛海信宽带多媒体技术有限公司 一种激光器
CN104749705A (zh) * 2013-12-26 2015-07-01 上海伟钊光学科技股份有限公司 光纤传感器光路系统
CN105842791A (zh) * 2015-01-13 2016-08-10 深圳市锦特尔技术有限公司 一种可调双光纤准直器及其应用
CN105977780A (zh) * 2016-07-15 2016-09-28 中国科学院光电技术研究所 一种用于空间线偏光双向收发的阵列式全光纤自适应耦合控制系统
CN109814205A (zh) * 2019-03-09 2019-05-28 珠海市杰威光电科技有限公司 一种偏振分束器
CN115166908A (zh) * 2022-07-22 2022-10-11 光信(徐州)电子科技有限公司 一种密集波分复用器

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US6865007B2 (en) 2002-03-19 2005-03-08 Dicos Technologies Inc. Complex frequency response filter and method for manufacturing the same
CN101762837A (zh) * 2008-12-25 2010-06-30 深圳富泰宏精密工业有限公司 镜片及应用该镜片的镜头模组
US9887783B2 (en) 2014-10-24 2018-02-06 Sumitomo Electric Industries, Ltd. Lens system to enhance optical coupling efficiency of collimated beam to optical waveguide
CN105629402B (zh) * 2014-10-28 2018-06-19 住友电气工业株式会社 准直光束与光波导的光耦合增效的透镜系统

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995016216A1 (en) * 1993-12-10 1995-06-15 Jds Fitel Inc. Optical non-reciprocal devices
AUPN714295A0 (en) * 1995-12-14 1996-01-11 Photonic Technologies Pty Ltd Fibre optic circulator
US6088153A (en) * 1997-06-26 2000-07-11 Scientific-Atlanta, Inc. Multi-functional optical isolator
US5930039A (en) * 1997-12-08 1999-07-27 U.S.A Kaifa Technology, Inc. Optical circulator
US6246807B1 (en) * 1999-04-06 2001-06-12 Adc Telecommunications, Inc. Optical circulator
US6282025B1 (en) * 1999-08-02 2001-08-28 New Focus, Inc. Optical polarization beam combiner/splitter
US6567578B1 (en) * 2000-02-16 2003-05-20 Adc Telecommunications Fiber optic device operating at two or more wavelengths

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101907749A (zh) * 2010-06-30 2010-12-08 中航光电科技股份有限公司 光纤扩束连接器
CN102621637A (zh) * 2012-04-11 2012-08-01 珠海保税区光联通讯技术有限公司 晶体保偏光耦合器及其制造方法
CN104716561A (zh) * 2013-12-12 2015-06-17 青岛海信宽带多媒体技术有限公司 一种激光器
CN104749705A (zh) * 2013-12-26 2015-07-01 上海伟钊光学科技股份有限公司 光纤传感器光路系统
CN103885195A (zh) * 2014-04-11 2014-06-25 珠海保税区光联通讯技术有限公司 法拉第旋转反射镜及光纤干涉仪
CN103885195B (zh) * 2014-04-11 2016-08-17 珠海保税区光联通讯技术有限公司 法拉第旋转反射镜及光纤干涉仪
CN105842791A (zh) * 2015-01-13 2016-08-10 深圳市锦特尔技术有限公司 一种可调双光纤准直器及其应用
CN105977780A (zh) * 2016-07-15 2016-09-28 中国科学院光电技术研究所 一种用于空间线偏光双向收发的阵列式全光纤自适应耦合控制系统
CN105977780B (zh) * 2016-07-15 2019-02-12 中国科学院光电技术研究所 一种用于空间线偏光双向收发的阵列式全光纤自适应耦合控制系统
CN109814205A (zh) * 2019-03-09 2019-05-28 珠海市杰威光电科技有限公司 一种偏振分束器
CN115166908A (zh) * 2022-07-22 2022-10-11 光信(徐州)电子科技有限公司 一种密集波分复用器
CN115166908B (zh) * 2022-07-22 2023-10-10 光信(徐州)电子科技有限公司 一种密集波分复用器

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