DE69829822D1 - Optisches Wellenlängenmultiplex Übertragungssystem mit Wellenlängenwählern - Google Patents
Optisches Wellenlängenmultiplex Übertragungssystem mit WellenlängenwählernInfo
- Publication number
- DE69829822D1 DE69829822D1 DE69829822T DE69829822T DE69829822D1 DE 69829822 D1 DE69829822 D1 DE 69829822D1 DE 69829822 T DE69829822 T DE 69829822T DE 69829822 T DE69829822 T DE 69829822T DE 69829822 D1 DE69829822 D1 DE 69829822D1
- Authority
- DE
- Germany
- Prior art keywords
- transmission system
- wavelength
- selectors
- division transmission
- wavelength division
- 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.)
- Expired - Fee Related
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J14/00—Optical multiplex systems
- H04J14/02—Wavelength-division multiplex systems
-
- 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
- G02B6/02—Optical fibres with cladding with or without a coating
- G02B6/02057—Optical fibres with cladding with or without a coating comprising gratings
- G02B6/02076—Refractive index modulation gratings, e.g. Bragg gratings
- G02B6/02195—Refractive index modulation gratings, e.g. Bragg gratings characterised by means for tuning the grating
- G02B6/022—Refractive index modulation gratings, e.g. Bragg gratings characterised by means for tuning the grating using mechanical stress, e.g. tuning by compression or elongation, special geometrical shapes such as "dog-bone" or taper
-
- 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
- G02B6/02—Optical fibres with cladding with or without a coating
- G02B6/02057—Optical fibres with cladding with or without a coating comprising gratings
- G02B6/02076—Refractive index modulation gratings, e.g. Bragg gratings
- G02B6/02195—Refractive index modulation gratings, e.g. Bragg gratings characterised by means for tuning the grating
- G02B6/02204—Refractive index modulation gratings, e.g. Bragg gratings characterised by means for tuning the grating using thermal effects, e.g. heating or cooling of a temperature sensitive mounting body
-
- 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
- G02B6/29304—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 operating by diffraction, e.g. grating
- G02B6/29316—Light guides comprising a diffractive element, e.g. grating in or on the light guide such that diffracted light is confined in the light guide
- G02B6/29317—Light guides of the optical fibre type
- G02B6/29319—With a cascade of diffractive elements or of diffraction operations
- G02B6/2932—With a cascade of diffractive elements or of diffraction operations comprising a directional router, e.g. directional coupler, circulator
-
- 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
- G02B6/29304—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 operating by diffraction, e.g. grating
- G02B6/29316—Light guides comprising a diffractive element, e.g. grating in or on the light guide such that diffracted light is confined in the light guide
- G02B6/29317—Light guides of the optical fibre type
- G02B6/29322—Diffractive elements of the tunable type
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/60—Receivers
- H04B10/66—Non-coherent receivers, e.g. using direct detection
- H04B10/67—Optical arrangements in the receiver
- H04B10/671—Optical arrangements in the receiver for controlling the input optical signal
- H04B10/675—Optical arrangements in the receiver for controlling the input optical signal for controlling the optical bandwidth of the input signal, e.g. spectral filtering
-
- 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
- H04J14/0215—Architecture aspects
- H04J14/0219—Modular or upgradable architectures
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Electromagnetism (AREA)
- Optical Communication System (AREA)
- Light Guides In General And Applications Therefor (AREA)
- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9295270A JPH11136214A (ja) | 1997-10-28 | 1997-10-28 | 波長多重光伝送システム |
JP29527097 | 1997-10-28 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69829822D1 true DE69829822D1 (de) | 2005-05-25 |
DE69829822T2 DE69829822T2 (de) | 2005-10-13 |
Family
ID=17818430
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69829822T Expired - Fee Related DE69829822T2 (de) | 1997-10-28 | 1998-10-27 | Optisches Wellenlängenmultiplex Übertragungssystem mit Wellenlängenwählern |
Country Status (4)
Country | Link |
---|---|
US (1) | US6160931A (de) |
EP (1) | EP0913962B1 (de) |
JP (1) | JPH11136214A (de) |
DE (1) | DE69829822T2 (de) |
Families Citing this family (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6281997B1 (en) * | 1997-09-11 | 2001-08-28 | Ciena Corporation | Dense WDM optical multiplexer and demultiplexer |
GB9827602D0 (en) * | 1998-12-15 | 1999-02-10 | Northern Telecom Ltd | Optical equaliser |
GB2346750B (en) * | 1999-02-09 | 2001-01-10 | Marconi Comm Ltd | Communications system |
JP3566129B2 (ja) * | 1999-04-06 | 2004-09-15 | 株式会社フジクラ | 温度補償型光ファイバブラッググレーティング |
JP2000341728A (ja) * | 1999-05-31 | 2000-12-08 | Fujitsu Ltd | 光クロスコネクト装置 |
US6415080B1 (en) | 1999-09-03 | 2002-07-02 | Zolo Technologies, Inc. | Echelle grating dense wavelength division multiplexer/demultiplexer |
CH694931A5 (de) * | 2000-03-17 | 2005-09-15 | Esec Trading Sa | Einrichtung fuer die Montage von Halbleiterchips auf einem Substrat. |
JP2001298413A (ja) * | 2000-04-12 | 2001-10-26 | Sumitomo Electric Ind Ltd | 光adm装置 |
US7386204B1 (en) | 2000-08-26 | 2008-06-10 | Cidra Corporation | Optical filter having a shaped filter function |
US6594410B2 (en) | 2000-08-26 | 2003-07-15 | Cidra Corporation | Wide range tunable optical filter |
US6795607B1 (en) * | 2000-10-11 | 2004-09-21 | Ciena Corporation | Use of tunable laser for optical performance monitoring in WDM system |
JP3788232B2 (ja) * | 2000-12-13 | 2006-06-21 | 日本電気株式会社 | 波長可変光送信器、その出力制御方法並及び光通信システム |
US6847477B2 (en) | 2001-02-28 | 2005-01-25 | Kilolamdia Ip Limited | Optical system for converting light beam into plurality of beams having different wavelengths |
US6647175B1 (en) * | 2001-10-08 | 2003-11-11 | Raytheon Company | Reflective light multiplexing device |
US6751375B1 (en) * | 2002-11-01 | 2004-06-15 | Alliance Fiber Optic Products, Inc. | Self-referencing tunable add-drop filters |
US7471899B2 (en) * | 2003-10-18 | 2008-12-30 | Electronics And Telecommunications Research Institute | WDM-PON system based on wavelength-tunable external cavity laser light source |
US20050254827A1 (en) * | 2004-05-11 | 2005-11-17 | Xyratex Technology Limited | Backplane for a data communication system, a data communication system, a host and a method of communication |
JP5019747B2 (ja) * | 2005-12-28 | 2012-09-05 | オリンパス株式会社 | プロジェクタ |
JP5633252B2 (ja) * | 2010-08-31 | 2014-12-03 | 日本電気株式会社 | 波長多重光伝送システムの波長多重部及び波長多重方法 |
JP2015195490A (ja) * | 2014-03-31 | 2015-11-05 | 富士通株式会社 | 伝送装置および光伝送システム |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06237242A (ja) * | 1993-02-09 | 1994-08-23 | Fujitsu Ltd | 光フィルタとその透過波長制御方法及びこれを用いた 光受信器 |
JPH0884135A (ja) * | 1994-09-13 | 1996-03-26 | Furukawa Electric Co Ltd:The | 波長多重光通信システム |
IT1272846B (it) * | 1994-11-25 | 1997-06-30 | Pirelli Cavi Spa | "sistema e metodo di telecomunicazione a multiplazione di lunghezza d'onda, con separazione controllata dei canali in uscita e per la determinazione del rapporto segnale/rumore ottico" |
FR2731082B1 (fr) * | 1995-02-28 | 1997-04-04 | France Telecom | Multiplexeur optique a insertion-extraction utilisant des circulateurs optiques et des reseaux de bragg photoinscrits |
JPH0951324A (ja) * | 1995-08-09 | 1997-02-18 | Nec Corp | 波長多重光伝送システム |
JP3540062B2 (ja) * | 1995-08-28 | 2004-07-07 | 富士通株式会社 | チューナブルフィルタモジュール |
JP3299101B2 (ja) * | 1995-12-15 | 2002-07-08 | 日本電気株式会社 | 波長多重光通信装置 |
US5673129A (en) * | 1996-02-23 | 1997-09-30 | Ciena Corporation | WDM optical communication systems with wavelength stabilized optical selectors |
US5953139A (en) * | 1996-03-06 | 1999-09-14 | Cfx Communications Systems, Llc | Wavelength division multiplexing system |
-
1997
- 1997-10-28 JP JP9295270A patent/JPH11136214A/ja not_active Withdrawn
-
1998
- 1998-10-27 DE DE69829822T patent/DE69829822T2/de not_active Expired - Fee Related
- 1998-10-27 US US09/179,386 patent/US6160931A/en not_active Expired - Fee Related
- 1998-10-27 EP EP98120277A patent/EP0913962B1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE69829822T2 (de) | 2005-10-13 |
JPH11136214A (ja) | 1999-05-21 |
EP0913962B1 (de) | 2005-04-20 |
EP0913962A2 (de) | 1999-05-06 |
EP0913962A3 (de) | 2002-06-19 |
US6160931A (en) | 2000-12-12 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |