CN1049288C - 自聚焦透镜型可调谐光滤波器单模尾纤准直器的制作方法 - Google Patents
自聚焦透镜型可调谐光滤波器单模尾纤准直器的制作方法 Download PDFInfo
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Abstract
本发明涉及一种光纤通信技术，特别适用于密集型光波分复用中一种关键性部件—自聚焦透镜可调谐光滤波器中单模尾纤准直器的制作场合。该技术通过调节单模尾纤与自聚焦透镜之间的距离及耦合状态，直至单模光纤耦合器和光功率计组成的监控装置探测到的回返光为最大值时则达到两者间的轴对称耦合状态，然后固定。采用这种方法制成的谐振腔比用可见光找基准的非量化方法制作的准直器构成的谐振腔性能优越得多。
Description
本发明涉及一种光纤通信技术，特别适用于密集型光波分复用中一种关键性部件——自聚焦透镜Fabry-Perot可调谐光滤波器中单模尾纤准直器的制作场合。
自聚焦透镜型Fabry-Perot谐振腔由一对带单模尾纤的P/4自聚焦透镜组成，直接在两个自聚焦透镜的相对端面上镀制介质高反射膜形成Fabry-Perot谐振腔。这种自聚焦透镜亦是准直聚焦耦合元件。影响这种自聚焦透镜Fabry-Perot腔可调谐滤光器性能的一个重要因素是单模尾纤准直器的制作。各种单模尾纤准直器都要先制作单模尾纤端面：将光纤插入插针体后粘接烘干，用金属固定卡固定，然后在夹具上将其端面研磨抛光，并确保纤芯光轴与光纤端面垂直。用于自聚焦透镜型Fabry-Perot可调谐光滤波器中的单模尾纤准直器在结构上不同于常规耦合用的单模尾纤准直器，因为前者自聚透镜界面镀有介质高反膜。过去普遍采用可见光(如632.8nm的He-Ne红光)制作光通信窗口1.31μm或1.55μm波长的单模光纤准直器，由于工作波长与调节波长不同就会引入相当的误差，使构成谐振腔的两个准直器各自不能达到轴对称耦合的要求，或组成谐振腔时不能达到共焦耦合，导致在腔内引入一定的入射角或引起腔内模式的失配，严重影响F-P腔的峰值传输特性及精细度。关于自聚焦透镜型Fabry-Perot可调谐光滤波器，已有许多文献作过报导，如H.Schmuck etc.“Low Loss SM Fiber-Pigtailed GRIN-Lens Fabry-PerotType Filter for widely Variable Free Spectral Range”ECOC89-585，但其中的单模尾纤准直器的制作方法未见公开。
针对上述现有技术存在的缺点，本发明的任务是提供一种单模尾纤准直器的制作方法。
本发明的技术方案是，该单模尾纤准直器是一种光学元件，它由一只P/4的自聚焦透镜和一根单模光纤组成，光纤与透镜之间为轴对称耦合。因从光纤出射的光经P/4透镜后扩束变成平行光，所以两只准直器可进行纤对纤、点对点的耦合，先制作单模尾纤端面：光纤插入插针体后粘接烘干，用金属固定卡固定，然后在夹具上将其端面研磨抛光，并确保纤芯轴与光纤端面垂直。本发明采取的技术措施为直接采用准直器工作波长的光进行调节，利用自聚焦透镜的等反射端面，用自准直的方法进行光纤与透镜间的轴对称耦合，其特征为：a.光源与光隔离器、单模光纤耦合器之间通过单模光纤顺序联接，光功率计探测端口和光隔离器分别在单模光纤耦合器同一边联接，单模光纤耦合器另一边与单模尾纤联接；b.将单模尾纤及具有高反射膜的P/4的自聚焦透镜分别用夹具夹持固定在高精密的微调架上；c.调节单模尾纤与自聚焦透镜间的距离及耦合状态，直至单模光纤耦合器和光功率计探测到的回返光为最大值时，则达到单模尾纤和自聚焦透镜两者间的轴对称耦合状态；d.然后用光学粘胶或金属化封装工艺使尾纤与自聚焦透镜牢固地结合在一起。
本发明的优点是，采用两只本发明所述的单模尾纤准直器，经适当调节即可组成Fabry-Perot谐振腔。试验结果表明，在同样条件下，采用这种方法制成的Fabry-Perot谐振腔比用可见光找基准的非量化方法制作的准直器构成的Fabry-Perot谐振腔性能优越得多。
附图说明如下：
附图1单模尾纤准直器示意图
附图2单模尾纤端面示意图
附图3本发明准直器制作监控原理图
以下结合附图解释本发明的实施状态。
图1表示单模尾纤准直器，它由一只P/4的自聚焦透镜5和一根单模尾纤4粘接或金属化封装组成。制作单模尾纤准直器时，要先制作单模尾纤端面，见图2，单模光纤10的纤芯涂胶插入插针体12后粘接烘干，用金属卡11在结合部固定，然后在夹具上将其端面研磨抛光，这时应确保纤芯光轴与光纤端面垂直。
图3中光源1与光隔离器2、单模光纤耦合器3之间通过单模光纤顺序联接，光功率计9探测端口和光隔离器2分别在单模光纤耦合器3同一边联接，单模光纤耦合器3另一边与单模尾纤4联接，单模尾纤4和具有高反射膜6的P/4自聚焦透镜5分别用夹具夹持固定在高度精密的微调架7、8上，其调节方法已在本说明书技术方案部分说明。
本实施例中光源1采用日本安立公司MG9001A激光二极管；光隔离器2采用武汉邮电科学院商品化在线式光隔离器WRIISO-PIS-155A；单模光纤耦合器3采用武汉邮电科学院商品化WRISTC-5-2-155-09型；光功率计9采用美国惠普公司HP8153A型；P/4自聚焦透镜5为日本NSGXW18-S025-155型；夹持透镜的微调架7为美国NEWPORT公司Ultra Align561D型五维微调架。
Claims (1)
1、一种自聚焦透镜型可调谐光滤波器单模尾纤准直器的制作方法，单模尾纤准直器由一只P/4的自聚焦透镜和一根单模尾纤组成，先制作单模尾纤端面：将光纤插入插针体后粘接烘干，用金属固定卡固定，然后在夹具上将其端面研磨抛光，并确保纤芯光轴与光纤端面垂直，其特征为：
a.光源(1)与光隔离器(2)、单模光纤耦合器(3)之间通过单模光纤顺序联接，光功率计(9)探测端口和光隔离器分别在单模光纤耦合器同一边联接，单模光纤耦合器另一边与单模尾纤联接；
b.将单模尾纤(4)及具有高反射膜(6)的P/4的自聚焦透镜(5)分别用夹具夹持固定在高精密的微调架(7)、(8)上；
c.调节单模尾纤(4)与自聚焦透镜(5)间的距离及耦合状态，直至单模光纤耦合器(3)和光功率计(9)探测到的回返光为最大值时，则达到单模尾纤和自聚焦透镜两者间的轴对称耦合状态；
d.然后用光学粘胶或金属化封装工艺使尾纤(4)与自聚焦透镜(5)牢固地结合在一起。
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| CN95116196A CN1049288C (zh) | 1995-11-03 | 1995-11-03 | 自聚焦透镜型可调谐光滤波器单模尾纤准直器的制作方法 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7066914B2 (en) | 2000-07-12 | 2006-06-27 | Bird Products Corporation | Catheter having a tip with an elongated collar |
| US7976518B2 (en) | 2005-01-13 | 2011-07-12 | Corpak Medsystems, Inc. | Tubing assembly and signal generator placement control device and method for use with catheter guidance systems |
| US8265732B2 (en) | 2000-08-23 | 2012-09-11 | Corpak Medsystems, Inc. | Catheter locator apparatus and method of use |
| US9028441B2 (en) | 2011-09-08 | 2015-05-12 | Corpak Medsystems, Inc. | Apparatus and method used with guidance system for feeding and suctioning |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102096160A (zh) * | 2010-12-23 | 2011-06-15 | 大连艾科科技开发有限公司 | 可提高半导体激光器尾纤耦合效率的联合调芯方法 |
| JP6957635B2 (ja) | 2017-03-22 | 2021-11-02 | マジック リープ， インコーポレイテッドＭａｇｉｃ Ｌｅａｐ，Ｉｎｃ． | 動的視野の可変焦点ディスプレイシステム |
| CN113827180B (zh) * | 2021-08-12 | 2024-04-09 | 天津市索维电子技术有限公司 | 一种多点并行采集眼前节分析装置 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| EP0480370A1 (en) * | 1990-10-08 | 1992-04-15 | Fujitsu Limited | Optical waveguide type wavelength filter |
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| EP0480370A1 (en) * | 1990-10-08 | 1992-04-15 | Fujitsu Limited | Optical waveguide type wavelength filter |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7066914B2 (en) | 2000-07-12 | 2006-06-27 | Bird Products Corporation | Catheter having a tip with an elongated collar |
| US8265732B2 (en) | 2000-08-23 | 2012-09-11 | Corpak Medsystems, Inc. | Catheter locator apparatus and method of use |
| US8606347B2 (en) | 2000-08-23 | 2013-12-10 | Corpak Medsystems, Inc. | Catheter locator apparatus and method of use |
| US8934960B2 (en) | 2000-08-23 | 2015-01-13 | Corpak Medsystems, Inc. | Catheter locator apparatus and method of use |
| US9585599B2 (en) | 2000-08-23 | 2017-03-07 | Corpak Medsystems, Inc. | Catheter locator apparatus and method of use |
| US7976518B2 (en) | 2005-01-13 | 2011-07-12 | Corpak Medsystems, Inc. | Tubing assembly and signal generator placement control device and method for use with catheter guidance systems |
| US9131956B2 (en) | 2005-01-13 | 2015-09-15 | Corpak Medsystems, Inc. | Tubing assembly and signal generator placement control device and method for use with catheter guidance systems |
| US9579488B2 (en) | 2005-01-13 | 2017-02-28 | Corpak Medsystems, Inc. | Tubing assembly and signal generator placement control device and method for use with catheter guidance systems |
| US9028441B2 (en) | 2011-09-08 | 2015-05-12 | Corpak Medsystems, Inc. | Apparatus and method used with guidance system for feeding and suctioning |
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| CN1131850A (zh) | 1996-09-25 |
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