JP2005055912A - 広い連続同調範囲を有する可変光遅延線 - Google Patents
広い連続同調範囲を有する可変光遅延線 Download PDFInfo
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- JP2005055912A JP2005055912A JP2004228951A JP2004228951A JP2005055912A JP 2005055912 A JP2005055912 A JP 2005055912A JP 2004228951 A JP2004228951 A JP 2004228951A JP 2004228951 A JP2004228951 A JP 2004228951A JP 2005055912 A JP2005055912 A JP 2005055912A
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- delay line
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- variable delay
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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
- G02B6/2804—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals forming multipart couplers without wavelength selective elements, e.g. "T" couplers, star couplers
- G02B6/2861—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals forming multipart couplers without wavelength selective elements, e.g. "T" couplers, star couplers using fibre optic delay lines and optical elements associated with them, e.g. for use in signal processing, e.g. filtering
-
- 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
- G02B6/35—Optical coupling means having switching means
- G02B6/351—Optical coupling means having switching means involving stationary waveguides with moving interposed optical elements
- G02B6/3512—Optical coupling means having switching means involving stationary waveguides with moving interposed optical elements the optical element being reflective, e.g. mirror
-
- 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
- G02B6/35—Optical coupling means having switching means
- G02B6/354—Switching arrangements, i.e. number of input/output ports and interconnection types
- G02B6/3554—3D constellations, i.e. with switching elements and switched beams located in a volume
- G02B6/3558—1xN switch, i.e. one input and a selectable single output of N possible outputs
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Theoretical Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)
- Light Guides In General And Applications Therefor (AREA)
- Optical Communication System (AREA)
- Mechanical Light Control Or Optical Switches (AREA)
Abstract
【解決手段】好ましい一実施形態では、第1の可変遅延線は、各経路が他の経路と異なって湾曲されて増分的に異なる遅延を提供する遅延経路のアレイを備える。第2の可変遅延線は、第1の遅延の増分に対して連続して同調可能な同調可能遅延経路である。
【選択図】図1
Description
光遅延線は、こうした光ファイバ通信システムの重要な構成要素である。光遅延線は、光信号の流れを1つの経路から別の経路に切り替える際の重要な構成要素である。光遅延線はインターネット・アプリケーションのためのパケット交換に使用され、インターネット用パケット・アドレスを認識するために使用する相関フィルタにおけるブロックを形成する。遅延線は、信号の経路指定のタイミングを制御するバッファにも使用される。また、遅延線は、データ・ビットを同期化し、様々な光経路間の分散を補償し、経路間の遅延差を補償するために使用される。
したがって、広い動的範囲にわたって連続した分解能を提供する改良型可変光遅延線を提供することが有利である。
本発明の利点、内容、および様々な追加の特徴は、添付の図面と併せて次に詳細に説明する例示の実施形態を検討すれば、さらに十分に明らかになるであろう。
理解されるように、図面は本発明の概念を示す目的のものであって原寸に比例するものではない。
遅延線11は、制御可能な走査ミラー212およびミラー・アレイ213からなるマイクロメカニカル・ミラー・スイッチ(MEMsスイッチ)など光スイッチ211を備える。この遅延線はさらに、ファイバ遅延経路の1つまたは複数のファイバ・アレイ214A、214Bを備える。以下で示すように、各ファイバ・アレイは、複数のファイバ経路を含む。各ファイバ経路は、アレイ内でファイバが他のファイバと異なって湾曲されている湾曲領域221、アレイ内でファイバが他のファイバに対して平行である1つまたは複数の第2の領域222A、222B、および反射器225を含む。このアレイは、各ファイバ経路が、アレイ内の他の経路と異なる遅延を伴った入力信号を反射するように設計されている。コリメータ・レンズのアレイ(図示せず)は、ファイバ・アレイに出入りする光を結合する。
Claims (9)
- 光信号を受信し、前記光信号に一続きの増分的に異なる遅延から選択した遅延を提供する増分可変光遅延線と、
前記増分遅延線に直列かつ光学的に結合され、前記光信号を受信して、前記増分遅延線における遅延の増加を実質的に包含する遅延の範囲から連続する遅延を提供するための連続可変光遅延線とを備える、広い連続同調範囲を有する可変光遅延線。 - 前記増分遅延線が、光経路の長さが増分的に異なる複数の光経路、および前記信号を選択された経路の長さの経路に切り替える光スイッチを備える、請求項1に記載の可変遅延線。
- 前記複数の光経路が、平行の経路の少なくとも1つの領域、および各経路の曲率が異なるため増分的に異なる経路の長さがもたらされる第2の領域を有する1組の経路を備える、請求項2に記載の可変遅延線。
- 前記連続可変遅延線が、オール・パス光フィルタを備える、請求項1に記載の可変遅延線。
- 前記オール・パス・フィルタが、光導波路に光学的に結合された複数の環状共振器を含む多段オール・パス・フィルタを備える、請求項4に記載の可変遅延線。
- 前記連続可変遅延線が、チャープド・グレーティングを含む、請求項1に記載の可変遅延線。
- 前記連続可変遅延線が、オール・パス光フィルタを備える、請求項2に記載の可変遅延線。
- 前記連続可変遅延線が、オール・パス光フィルタを備える、請求項3に記載の可変遅延線。
- 前記連続可変遅延線が、光導波路に光学的に結合された複数の環状共振器を含む多段オール・パス光フィルタを備える、請求項3に記載の可変遅延線。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/634,403 US7212695B2 (en) | 2003-08-05 | 2003-08-05 | Variable optical delay line with a large continuous tuning range |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2005055912A true JP2005055912A (ja) | 2005-03-03 |
JP4546785B2 JP4546785B2 (ja) | 2010-09-15 |
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JP2004228951A Expired - Fee Related JP4546785B2 (ja) | 2003-08-05 | 2004-08-05 | 広い連続同調範囲を有する可変光遅延線 |
Country Status (3)
Country | Link |
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US (1) | US7212695B2 (ja) |
JP (1) | JP4546785B2 (ja) |
CN (1) | CN1584648A (ja) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7404114B2 (en) * | 2005-02-15 | 2008-07-22 | International Business Machines Corporation | System and method for balancing delay of signal communication paths through well voltage adjustment |
US7676153B1 (en) | 2005-10-17 | 2010-03-09 | The United States Of America As Represented By The Secretary Of The Air Force | Digital delay device |
US7684666B2 (en) * | 2006-11-10 | 2010-03-23 | International Business Machines Corporation | Method and apparatus for tuning an optical delay line |
US8073333B2 (en) * | 2007-11-16 | 2011-12-06 | Alcatel Lucent | Multiplex delay unit |
US7945165B2 (en) * | 2007-11-16 | 2011-05-17 | Alcatel-Lucent Usa Inc. | Optical signal synchronizer |
TWI365309B (en) * | 2008-03-11 | 2012-06-01 | Univ Nat Chiao Tung | Optical amplifier with tunable time of optical signal |
TW201013291A (en) * | 2008-09-19 | 2010-04-01 | Univ Nat Chiao Tung | Adjustable optical-signal delay module and method of same |
US8260142B2 (en) * | 2009-06-29 | 2012-09-04 | Alcatel Lucent | Multi-channel optical arrayed time buffer |
GB2474863A (en) * | 2009-10-28 | 2011-05-04 | Univ Gent | Optical buffer with controllable delay |
US8670675B2 (en) * | 2010-12-22 | 2014-03-11 | Applied Optoelectronics, Inc. | System and method for distortion compensation including configureable delay |
US8643925B2 (en) * | 2011-05-12 | 2014-02-04 | Verizon Patent And Licensing Inc. | Variable dispersion compensator |
US10110318B2 (en) * | 2015-02-19 | 2018-10-23 | Elenion Technologies, Llc | Optical delay lines for electrical skew compensation |
CN105842781A (zh) * | 2016-04-01 | 2016-08-10 | 中国电子科技集团公司第三十八研究所 | 基于集成光波导的大范围连续可调延时线器件 |
US10911845B1 (en) * | 2019-07-11 | 2021-02-02 | Huawei Technologies Co., Ltd. | Apparatus and method for tunable photonic delay |
CN112504433B (zh) * | 2020-12-18 | 2022-02-11 | 西北大学 | 温度自参考灵敏度可调谐光纤分布式振动检波装置及方法 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000151513A (ja) * | 1998-10-30 | 2000-05-30 | Lucent Technol Inc | 全域通過光フィルタ、光パルスの分散を低減する方法 |
JP2001521206A (ja) * | 1997-10-28 | 2001-11-06 | イギリス国 | 電気的に同調可能な光学的フィルタ |
US20020067877A1 (en) * | 2000-12-06 | 2002-06-06 | Braun Linda M. | Variable optical delay lines and methods for making same |
US20030122063A1 (en) * | 2001-12-31 | 2003-07-03 | Levent Biyikli | Polarization transformer and polarization mode dispersion compensator |
US6956991B2 (en) * | 2003-08-05 | 2005-10-18 | Lucent Technologies Inc. | Compact solid-state variable optical delay line with a large continuous tuning range |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5259051A (en) * | 1992-08-28 | 1993-11-02 | At&T Bell Laboratories | Optical fiber interconnection apparatus and methods of making interconnections |
US5629790A (en) * | 1993-10-18 | 1997-05-13 | Neukermans; Armand P. | Micromachined torsional scanner |
US5793907A (en) * | 1996-03-28 | 1998-08-11 | The Regents Of The University Of California | Method and apparatus for a wavelength selective true-time delay for an optically controlled device |
US5943636A (en) * | 1997-07-24 | 1999-08-24 | Honeywell Inc. | Method and apparatus to calibrate and run optical delay devices |
US6300619B1 (en) * | 1997-12-22 | 2001-10-09 | Lucent Technologies Inc. | Micro-electro-mechanical optical device |
US6393177B2 (en) * | 1998-01-20 | 2002-05-21 | United States Of America | True time delay generating system and method |
US6275629B1 (en) * | 1998-09-11 | 2001-08-14 | Lucent Technologies Inc. | Optical grating devices with adjustable chirp |
GB9915233D0 (en) * | 1999-06-30 | 1999-09-01 | Marconi Comm Ltd | Optical system |
US6201631B1 (en) * | 1999-10-08 | 2001-03-13 | Lucent Technologies Inc. | Process for fabricating an optical mirror array |
US6748142B2 (en) * | 2002-04-24 | 2004-06-08 | Lucent Technologies Inc. | Integrated optical dual dispersion compensator for compensating both chromatic and polarization mode dispersion |
US6958843B2 (en) * | 2002-06-27 | 2005-10-25 | Petacomm, Inc. | Wide-range and high-resolution variable optical delay |
-
2003
- 2003-08-05 US US10/634,403 patent/US7212695B2/en not_active Expired - Lifetime
-
2004
- 2004-08-04 CN CN200410055839.1A patent/CN1584648A/zh active Pending
- 2004-08-05 JP JP2004228951A patent/JP4546785B2/ja not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001521206A (ja) * | 1997-10-28 | 2001-11-06 | イギリス国 | 電気的に同調可能な光学的フィルタ |
JP2000151513A (ja) * | 1998-10-30 | 2000-05-30 | Lucent Technol Inc | 全域通過光フィルタ、光パルスの分散を低減する方法 |
US20020067877A1 (en) * | 2000-12-06 | 2002-06-06 | Braun Linda M. | Variable optical delay lines and methods for making same |
US20030122063A1 (en) * | 2001-12-31 | 2003-07-03 | Levent Biyikli | Polarization transformer and polarization mode dispersion compensator |
US6956991B2 (en) * | 2003-08-05 | 2005-10-18 | Lucent Technologies Inc. | Compact solid-state variable optical delay line with a large continuous tuning range |
Also Published As
Publication number | Publication date |
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US7212695B2 (en) | 2007-05-01 |
US20050031248A1 (en) | 2005-02-10 |
CN1584648A (zh) | 2005-02-23 |
JP4546785B2 (ja) | 2010-09-15 |
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