JPH06503899A - 強度分割デバイス - Google Patents
強度分割デバイスInfo
- Publication number
- JPH06503899A JPH06503899A JP4500063A JP50006392A JPH06503899A JP H06503899 A JPH06503899 A JP H06503899A JP 4500063 A JP4500063 A JP 4500063A JP 50006392 A JP50006392 A JP 50006392A JP H06503899 A JPH06503899 A JP H06503899A
- Authority
- JP
- Japan
- Prior art keywords
- waveguide
- input
- output
- multimode
- radiation
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/16—Auxiliary devices for mode selection, e.g. mode suppression or mode promotion; for mode conversion
-
- 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
- G02B6/2808—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 a mixing element which evenly distributes an input signal over a number of outputs
- G02B6/2813—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 a mixing element which evenly distributes an input signal over a number of outputs based on multimode interference effect, i.e. self-imaging
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Integrated Circuits (AREA)
- Lasers (AREA)
Abstract
Description
Claims (9)
- 1.(a)マルチモード導波路(20)と、(b)マルチモード導波路(20) の対称モードと反対称モードとが共に励起されるように入力幅射線を中継すべく 構成された少なくとも1個の入力ポートと を含み、 (A)マルチモード導波路の横断面を横切る方向に間隔を開けて配置された1組 の出力ポートも含み、(B)マルチモード導波路(20)並びに入力及び出力ポ ート(18、20)の外形寸法及び空間的相互関係は、マルチモード導波路(2 0)まで基本モードとして伝搬する入力輻射線がモード分散により個々の出力ポ ートにおいて様々な大きさの強度分布極大値を生じるように組み合わせて設定さ れており、前記極大値は各々実質的に入力輻射線基本モードの再生である ことを特徴とする強度分割デバイス(10)。
- 2.入力及び出力ポートがそれぞれ入力及び出力導波路(18、22)の開口で あることを特徴とする請求項1に記載のデバイス(10)。
- 3.入力、マルチモード及び出力導波路(18、20、22)が実質的に平行な 長手軸線(24、28)を有することを特徴とする請求項2に記載のデバイス( 10)。
- 4.(a)マルチモード導波路(20)が寸法2a×2bの矩形横断面を有し、 (b)入力及び出力導波路(18、22)は1辺が2aの正方形横断面を有し、 (c)出力導波路(22)はマルチモード準波路(20)と、後者の横断面を横 切る方向に等間隔に並んだ地点で接続されており、(d)少なくとも1個の入力 ポート及び該ポートの関連導波路(18)はマルチモード導波路(20)の長手 軸線(24)から偏位しており、 (e)マルチモード導波路(20)は入力及び出力ポート間の長さしの光路を構 成し、その際しは8b2/Nλに等しく、前記式中Nは出力ポートの数であり、 λはデバイス(10)を適用されるべき輻射線の波長であり、この波長はマルチ モード導波路(20)内での波長である ことを特徴とする請求項3に記載のデバイス(10)。
- 5.複数の入力ポートを含み、これらの入力ポートはそれぞれ、マルチモード導 波路(150)の該導波路自体を介しての基本モード励起に応答して個々の出力 ポートにおいて様々な大きさの強度分布極大値が発生されるように構成されてい ることを特徴とする請求項1、2または3に記載のデバイス(140)。
- 6.(a)各入力ポートが、各々移相手段(148a〜148d)を含む個々の 入力導波路(146a〜146d)と接続されており、(b)入力導波路(14 6)に同じ強度の輻射線ビームを付与する手段(142、144)が設けられて おり、(c)各移相手段(148a〜148d)は当該手段に1組の移相のうち のいずれかを行なわせるように機能する制御手段と関係付けられており、 (d)移相手段及び制御手段(148)は、出力導波路に選択可能な大きさの強 度を受容させるように組み合わせて構成されている ことを特徴とする請求項5に記載のデバイス(140)。
- 7.輻射線ビーム付与手段が第二のマルチモード導波路(144)と、この導波 路の対称モードのみを励起するように構成された入力手段(142)とを含むこ とを特徴とする請求項6に記載のデバイス(140)。
- 8.(a)前記マルチモード導波路が第一のマルチモード導波路(216)であ り、 (b)前記少なくとも1個の入力ポートは、1組の出力ポートのポート数に等し い個数で存在する1組の入力ポートであり、 (c)1組の入力ポートを有する第二のマルチモード導波路(206)が設けら れており、この導波路の出力ポートは入力輻射線を第一のマルチモード導波路( 216)の選択可能な1個の入力ポートに供給するように構成されており、第二 のマルチモード導波路(206)及びそのポートは第一のマルチモード導波路( 216)のものと同様の強度分割特性を有し、(d)第一及び第二のマルチモー ド導波路(216、206)は、デバイス入力(184)とデバイス出力(19 0)との間を伝搬する輻射線に選択可能な不等強度分割の連続する2段階を施す ように相対移動され得る ことを特徴とする請求項1に記載のデバイス(180)。
- 9.(a)入力ポート近傍に検出ポート(266)を有し、(b)マルチモード 導波路(254)は、輻射線を標的ゾーン及び局部発振器信号供給手段(276 )へと中継するようにそれぞれ構成された第一及び第二の出力ポートを有し、( c)第一及び第二の出力ポートは標的ゾーン及び信号供給手段(276)から戻 ってくる輻射線をマルチモード導波路(254)へと中継するようにもそれぞれ 構成されており、(d)コヒーレント幅射線源(270)は入力幅射線を入力ポ ートに供給するように構成されており、 (e)マルチモード導波路(254)は、入力幅射線強度を第一の出力ポートに は比較的大きい比率で、第二の出力ポートには比較的小さい比率で結合するよう に構成されており、また標的ゾーンと信号発生手段(276)との両方から戻っ てくる輻射線に検出ポート(266a)において複合ビート周波数信号を生じさ せるように構成されていることを特徴とする請求項1に記載のデバイス(250 )。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9027658.5 | 1990-12-20 | ||
GB909027658A GB9027658D0 (en) | 1990-12-20 | 1990-12-20 | Intensity dividing device |
PCT/GB1991/002131 WO1992011554A2 (en) | 1990-12-20 | 1991-12-02 | Intensity dividing device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH06503899A true JPH06503899A (ja) | 1994-04-28 |
JP3188695B2 JP3188695B2 (ja) | 2001-07-16 |
Family
ID=10687342
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP50006392A Expired - Lifetime JP3188695B2 (ja) | 1990-12-20 | 1991-12-02 | 強度分割デバイス |
Country Status (7)
Country | Link |
---|---|
US (1) | US5379354A (ja) |
EP (1) | EP0563068B1 (ja) |
JP (1) | JP3188695B2 (ja) |
CA (1) | CA2096422C (ja) |
DE (1) | DE69129120T2 (ja) |
GB (1) | GB9027658D0 (ja) |
WO (1) | WO1992011554A2 (ja) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09178964A (ja) * | 1995-12-27 | 1997-07-11 | Nhk Spring Co Ltd | 光導波路の分岐構造 |
JPH09311235A (ja) * | 1996-05-21 | 1997-12-02 | Nhk Spring Co Ltd | 光導波路の分岐構造 |
JP2002350635A (ja) * | 2001-05-22 | 2002-12-04 | Fujitsu Ltd | 薄膜素子の配置方法、光回路装置及び光電子装置 |
US7054523B2 (en) | 2001-10-24 | 2006-05-30 | Hitachi, Ltd. | Optical waveguide member and optical module |
Families Citing this family (46)
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WO1995012828A1 (de) * | 1993-11-04 | 1995-05-11 | Besse Pierre Andre | Verfahren zur änderung der intensitäts- und phasen-verhältnisse in multi-mode interferenz kopplern |
WO1995013552A2 (en) * | 1993-11-12 | 1995-05-18 | British Telecommunications Public Limited Company | Optical filter |
JP3833313B2 (ja) * | 1996-08-30 | 2006-10-11 | 株式会社日立製作所 | 半導体レーザ素子 |
US6108606A (en) * | 1996-09-17 | 2000-08-22 | Gas Research Institute | Waveguide disturbance detection method |
US5838842A (en) * | 1997-01-10 | 1998-11-17 | The United States Of America As Represented By The Secretary Of The Army | Self-imaging waveguide optical polarization or wavelength splitters |
US5862288A (en) * | 1997-04-21 | 1999-01-19 | The United States Of America As Represented By The Secretary Of The Army | Self-imaging waveguide devices for wavelength division multiplexing applications |
US6169757B1 (en) * | 1997-09-26 | 2001-01-02 | Scott A. Merritt | Intermodal phase difference controller for beam angle modulation in index guided semiconductor devices |
US6792172B1 (en) | 1998-05-08 | 2004-09-14 | The Trustees Of Columbia University Of The City Of New York | Reduced size multimode interference based coupler |
JP3329764B2 (ja) * | 1999-05-13 | 2002-09-30 | 日本電気株式会社 | 半導体レーザー及び半導体光増幅器 |
US6571038B1 (en) * | 2000-03-01 | 2003-05-27 | Lucent Technologies Inc. | Multimode interference coupler with tunable power splitting ratios and method of tuning |
US7042631B2 (en) * | 2001-01-04 | 2006-05-09 | Coherent Technologies, Inc. | Power scalable optical systems for generating, transporting, and delivering high power, high quality, laser beams |
US6580844B2 (en) * | 2001-04-24 | 2003-06-17 | Lucent Technologies Inc. | Broadband wavelength-division multiplexer/demultiplexer |
GB0201950D0 (en) * | 2002-01-29 | 2002-03-13 | Qinetiq Ltd | Multimode interference optical waveguide device |
GB0201969D0 (en) * | 2002-01-29 | 2002-03-13 | Qinetiq Ltd | Integrated optics devices |
WO2004015470A1 (en) * | 2002-08-08 | 2004-02-19 | Agere Systems Inc. | Optical device |
GB0225595D0 (en) * | 2002-11-02 | 2002-12-11 | Qinetiq Ltd | Optical device |
IL166810A0 (en) * | 2005-02-10 | 2006-01-15 | Univ Ramot | All-optical devices and methods for data processing |
JP3823193B1 (ja) | 2005-07-08 | 2006-09-20 | 学校法人慶應義塾 | 多モード干渉導波路型光スイッチ |
GB2441790A (en) | 2006-09-12 | 2008-03-19 | Qinetiq Ltd | Electro-optic waveguide polarisation modulator |
US7477809B1 (en) | 2007-07-31 | 2009-01-13 | Hewlett-Packard Development Company, L.P. | Photonic guiding device |
US7499615B2 (en) * | 2007-08-01 | 2009-03-03 | Hewlett-Packard Development Company, L.P. | System and methods for routing optical signals |
US7546012B2 (en) * | 2007-10-23 | 2009-06-09 | Hewlett-Packard Development Company, L.P. | Waveguide system with diffracting structure |
WO2009093036A2 (en) | 2008-01-25 | 2009-07-30 | Qinetiq Limited | Quantum cryptography apparatus |
GB0801408D0 (en) | 2008-01-25 | 2008-03-05 | Qinetiq Ltd | Multi-community network with quantum key distribution |
GB0801492D0 (en) | 2008-01-28 | 2008-03-05 | Qinetiq Ltd | Optical transmitters and receivers for quantum key distribution |
KR101453136B1 (ko) * | 2008-05-09 | 2014-10-27 | 휴렛-팩커드 디벨롭먼트 컴퍼니, 엘.피. | 광 스플리터 장치 |
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GB0819665D0 (en) | 2008-10-27 | 2008-12-03 | Qinetiq Ltd | Quantum key dsitribution |
GB0822253D0 (en) | 2008-12-05 | 2009-01-14 | Qinetiq Ltd | Method of establishing a quantum key for use between network nodes |
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GB0822356D0 (en) | 2008-12-08 | 2009-01-14 | Qinetiq Ltd | Non-linear optical device |
CN102272642B (zh) | 2009-01-07 | 2015-07-08 | 惠普开发有限公司 | 光子波导 |
CN102349010B (zh) | 2009-01-09 | 2014-05-14 | 惠普开发有限公司 | 用于路由光学信号的系统和方法 |
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GB201020424D0 (en) | 2010-12-02 | 2011-01-19 | Qinetiq Ltd | Quantum key distribution |
JP5987251B2 (ja) * | 2011-03-14 | 2016-09-07 | 国立大学法人九州大学 | 半導体レーザー |
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GB2522410A (en) | 2014-01-20 | 2015-07-29 | Rockley Photonics Ltd | Tunable SOI laser |
GB2522252B (en) | 2014-01-20 | 2016-04-20 | Rockley Photonics Ltd | Tunable SOI laser |
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GB2547467A (en) | 2016-02-19 | 2017-08-23 | Rockley Photonics Ltd | Tunable laser |
KR101824873B1 (ko) * | 2017-02-07 | 2018-02-02 | 유기현 | 평면 광파 회로를 이용한 광 마이크로폰 시스템 |
US10811848B2 (en) | 2017-06-14 | 2020-10-20 | Rockley Photonics Limited | Broadband arbitrary wavelength multichannel laser source |
US10877219B1 (en) * | 2019-08-20 | 2020-12-29 | Cisco Technology, Inc. | Periscope optical assembly |
US20220091333A1 (en) * | 2020-09-23 | 2022-03-24 | Apple Inc. | Light Splitting Device |
US11609392B1 (en) * | 2022-02-24 | 2023-03-21 | X Development Llc | Photonic coupler |
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US5208885A (en) * | 1992-02-27 | 1993-05-04 | At&T Bell Laboratories | Optical fiber to strip waveguide interconnect |
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-
1990
- 1990-12-20 GB GB909027658A patent/GB9027658D0/en active Pending
-
1991
- 1991-12-02 EP EP91920710A patent/EP0563068B1/en not_active Expired - Lifetime
- 1991-12-02 CA CA002096422A patent/CA2096422C/en not_active Expired - Lifetime
- 1991-12-02 WO PCT/GB1991/002131 patent/WO1992011554A2/en active IP Right Grant
- 1991-12-02 JP JP50006392A patent/JP3188695B2/ja not_active Expired - Lifetime
- 1991-12-02 US US08/064,043 patent/US5379354A/en not_active Expired - Lifetime
- 1991-12-02 DE DE69129120T patent/DE69129120T2/de not_active Expired - Lifetime
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09178964A (ja) * | 1995-12-27 | 1997-07-11 | Nhk Spring Co Ltd | 光導波路の分岐構造 |
JPH09311235A (ja) * | 1996-05-21 | 1997-12-02 | Nhk Spring Co Ltd | 光導波路の分岐構造 |
JP2002350635A (ja) * | 2001-05-22 | 2002-12-04 | Fujitsu Ltd | 薄膜素子の配置方法、光回路装置及び光電子装置 |
JP4678985B2 (ja) * | 2001-05-22 | 2011-04-27 | 富士通株式会社 | 光回路装置の製造方法 |
US7054523B2 (en) | 2001-10-24 | 2006-05-30 | Hitachi, Ltd. | Optical waveguide member and optical module |
Also Published As
Publication number | Publication date |
---|---|
EP0563068A1 (en) | 1993-10-06 |
US5379354A (en) | 1995-01-03 |
CA2096422C (en) | 2002-11-26 |
DE69129120T2 (de) | 1998-10-08 |
WO1992011554A2 (en) | 1992-07-09 |
CA2096422A1 (en) | 1992-06-21 |
DE69129120D1 (de) | 1998-04-23 |
WO1992011554A3 (en) | 1992-08-06 |
JP3188695B2 (ja) | 2001-07-16 |
EP0563068B1 (en) | 1998-03-18 |
GB9027658D0 (en) | 1991-02-13 |
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