IT1265017B1 - Commutatore ottico selettivo in lunghezza d'onda. - Google Patents
Commutatore ottico selettivo in lunghezza d'onda.Info
- Publication number
- IT1265017B1 IT1265017B1 IT93TO000601A ITTO930601A IT1265017B1 IT 1265017 B1 IT1265017 B1 IT 1265017B1 IT 93TO000601 A IT93TO000601 A IT 93TO000601A IT TO930601 A ITTO930601 A IT TO930601A IT 1265017 B1 IT1265017 B1 IT 1265017B1
- Authority
- IT
- Italy
- Prior art keywords
- wave length
- optical switch
- selective optical
- circulator
- output
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/29—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the position or the direction of light beams, i.e. deflection
- G02F1/31—Digital deflection, i.e. optical switching
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/09—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on magneto-optical elements, e.g. exhibiting Faraday effect
- G02F1/093—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on magneto-optical elements, e.g. exhibiting Faraday effect used as non-reciprocal devices, e.g. optical isolators, circulators
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J14/00—Optical multiplex systems
- H04J14/02—Wavelength-division multiplex systems
- H04J14/0201—Add-and-drop multiplexing
- H04J14/0202—Arrangements therefor
- H04J14/0206—Express channels arrangements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J14/00—Optical multiplex systems
- H04J14/02—Wavelength-division multiplex systems
- H04J14/0201—Add-and-drop multiplexing
- H04J14/0202—Arrangements therefor
- H04J14/021—Reconfigurable arrangements, e.g. reconfigurable optical add/drop multiplexers [ROADM] or tunable optical add/drop multiplexers [TOADM]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J14/00—Optical multiplex systems
- H04J14/02—Wavelength-division multiplex systems
- H04J14/0201—Add-and-drop multiplexing
- H04J14/0202—Arrangements therefor
- H04J14/021—Reconfigurable arrangements, e.g. reconfigurable optical add/drop multiplexers [ROADM] or tunable optical add/drop multiplexers [TOADM]
- H04J14/0212—Reconfigurable arrangements, e.g. reconfigurable optical add/drop multiplexers [ROADM] or tunable optical add/drop multiplexers [TOADM] using optical switches or wavelength selective switches [WSS]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J14/00—Optical multiplex systems
- H04J14/02—Wavelength-division multiplex systems
- H04J14/0201—Add-and-drop multiplexing
- H04J14/0202—Arrangements therefor
- H04J14/0213—Groups of channels or wave bands arrangements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J14/00—Optical multiplex systems
- H04J14/02—Wavelength-division multiplex systems
- H04J14/0201—Add-and-drop multiplexing
- H04J14/0215—Architecture aspects
- H04J14/0219—Modular or upgradable architectures
Abstract
IL DISPOSITIVO COMPRENDE UN PRIMO E UN SECONDO CIRCOLATORE OTTICO (C1, C2) AVENTI UNA PORTA DI INGRESSO E UNA PORTA DI USCITA CHE COSTITUISCONO GLI INGRESSI E LE USCITE DEL COMMUTATORE, E UN FILTRO OTTICO PASSA-BANDA (FP), DISPOSTO TRA I DUE CIRCOLATORI (C1, C2) E COLLEGATO A MEZZI PER VARIARE LO STATO DEL FILTRO IN MODO TALE CHE ESSO RIFLETTA O TRASMETTA UNA LUNGHEZZA D'ONDA PRESTABILITA E PROVOCHI IL PASSAGGIO DI UNA PORTANTE A TALE LUNGHEZZA D'ONDA, PRESENTE A UN INGRESSO DI UNO DEI CIRCOLATORI (C1, C2), SULL'USCITA DELLO STESSO CIRCOLATORE O SULL'USCITA DELL'ALTRO CIRCOLATORE.
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT93TO000601A IT1265017B1 (it) | 1993-08-10 | 1993-08-10 | Commutatore ottico selettivo in lunghezza d'onda. |
US08/271,016 US5448660A (en) | 1993-08-10 | 1994-07-06 | Wavelength selective optical switch |
JP6198968A JP2604328B2 (ja) | 1993-08-10 | 1994-08-02 | 波長選択光スイッチ |
EP94112410A EP0638836B1 (en) | 1993-08-10 | 1994-08-09 | Wavelength selective optical switch |
CA002129778A CA2129778C (en) | 1993-08-10 | 1994-08-09 | Wavelength selective optical switch |
DE69403580T DE69403580T2 (de) | 1993-08-10 | 1994-08-09 | Wellenlängenselektiver optischer Schalter |
DE0638836T DE638836T1 (de) | 1993-08-10 | 1994-08-09 | Wellenlängenselektiver optischer Schalter. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT93TO000601A IT1265017B1 (it) | 1993-08-10 | 1993-08-10 | Commutatore ottico selettivo in lunghezza d'onda. |
Publications (3)
Publication Number | Publication Date |
---|---|
ITTO930601A0 ITTO930601A0 (it) | 1993-08-10 |
ITTO930601A1 ITTO930601A1 (it) | 1995-02-10 |
IT1265017B1 true IT1265017B1 (it) | 1996-10-17 |
Family
ID=11411683
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT93TO000601A IT1265017B1 (it) | 1993-08-10 | 1993-08-10 | Commutatore ottico selettivo in lunghezza d'onda. |
Country Status (6)
Country | Link |
---|---|
US (1) | US5448660A (it) |
EP (1) | EP0638836B1 (it) |
JP (1) | JP2604328B2 (it) |
CA (1) | CA2129778C (it) |
DE (2) | DE69403580T2 (it) |
IT (1) | IT1265017B1 (it) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3039347B2 (ja) * | 1995-12-27 | 2000-05-08 | 日立電線株式会社 | スイッチング機能を備えた光部品及びそれに使用する導波路型フィルタ |
US5608825A (en) * | 1996-02-01 | 1997-03-04 | Jds Fitel Inc. | Multi-wavelength filtering device using optical fiber Bragg grating |
JPH1032562A (ja) * | 1996-07-16 | 1998-02-03 | Fujitsu Ltd | 光アッド/ドロップ回路 |
US5907420A (en) * | 1996-09-13 | 1999-05-25 | Lucent Technologies, Inc. | System and method for mitigating cross-saturation in optically amplified networks |
KR0183945B1 (ko) * | 1996-11-28 | 1999-05-15 | 삼성전자주식회사 | 광 디멀티플렉서 |
KR100207602B1 (ko) | 1996-12-06 | 1999-07-15 | 윤종용 | 광 전력의 손실을 방지하는 광 파장 필터 및 이를 이용한 광 디멀티플렉서 |
US5778116A (en) * | 1997-01-23 | 1998-07-07 | Tomich; John L. | Photonic home area network fiber/power insertion apparatus |
US6041152A (en) * | 1997-09-02 | 2000-03-21 | Amphenol Corporation | Multi-channel fiber optic communications system and multiplexer/demultiplexer arrangement therefor |
US6410261B2 (en) | 1997-11-06 | 2002-06-25 | President And Fellows Of Harvard College | CIITA-interacting proteins and methods of use therefor |
US6128113A (en) * | 1998-03-04 | 2000-10-03 | Dynamics Research Corporation | Transparent optical communications switch |
US6445843B1 (en) * | 2000-12-20 | 2002-09-03 | Lynx Photonic Networks Inc. | Optical switching system with power balancing |
US6490381B1 (en) * | 2000-06-01 | 2002-12-03 | Optical Coating Laboratory, Inc. | Fabry-Perot optical switch |
KR100539900B1 (ko) * | 2003-04-19 | 2005-12-28 | 삼성전자주식회사 | 광 스위칭 장치 |
CN102681286B (zh) * | 2009-05-25 | 2014-11-05 | 财团法人工业技术研究院 | 光开关以及光信号的通信系统 |
US9502856B2 (en) * | 2012-04-11 | 2016-11-22 | University Of Central Florida Research Foundation, Inc. | Stabilization of an injection locked harmonically mode-locked laser via polarization spectroscopy for frequency comb generation |
JP6708338B2 (ja) * | 2015-10-21 | 2020-06-10 | 国立研究開発法人産業技術総合研究所 | 波長選択スイッチ |
US11888583B2 (en) * | 2020-12-07 | 2024-01-30 | Nec Corporation | Integrated 3-way branching unit switch module having small footprint |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5026137A (en) * | 1988-09-26 | 1991-06-25 | Canon Kabushiki Kaisha | Light signal transmission system |
DE4019225A1 (de) * | 1990-06-15 | 1991-12-19 | Standard Elektrik Lorenz Ag | Optisches schaltelement |
JPH04217233A (ja) * | 1990-12-19 | 1992-08-07 | Nec Corp | 多波長光増幅装置 |
US5321774A (en) * | 1993-07-30 | 1994-06-14 | National Research Council Of Canada | Polarization independent transmissive/reflective optical switch |
-
1993
- 1993-08-10 IT IT93TO000601A patent/IT1265017B1/it active IP Right Grant
-
1994
- 1994-07-06 US US08/271,016 patent/US5448660A/en not_active Expired - Lifetime
- 1994-08-02 JP JP6198968A patent/JP2604328B2/ja not_active Expired - Fee Related
- 1994-08-09 CA CA002129778A patent/CA2129778C/en not_active Expired - Fee Related
- 1994-08-09 DE DE69403580T patent/DE69403580T2/de not_active Expired - Fee Related
- 1994-08-09 DE DE0638836T patent/DE638836T1/de active Pending
- 1994-08-09 EP EP94112410A patent/EP0638836B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
ITTO930601A0 (it) | 1993-08-10 |
JPH07140496A (ja) | 1995-06-02 |
EP0638836B1 (en) | 1997-06-04 |
DE69403580T2 (de) | 1997-10-09 |
CA2129778A1 (en) | 1995-02-11 |
US5448660A (en) | 1995-09-05 |
ITTO930601A1 (it) | 1995-02-10 |
JP2604328B2 (ja) | 1997-04-30 |
DE638836T1 (de) | 1995-08-03 |
CA2129778C (en) | 1997-09-02 |
EP0638836A1 (en) | 1995-02-15 |
DE69403580D1 (de) | 1997-07-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
0001 | Granted | ||
TA | Fee payment date (situation as of event date), data collected since 19931001 |
Effective date: 19970801 |