DE69526620D1 - Optische Verstärker für Wellenlängenmultiplexsysteme - Google Patents
Optische Verstärker für WellenlängenmultiplexsystemeInfo
- Publication number
- DE69526620D1 DE69526620D1 DE69526620T DE69526620T DE69526620D1 DE 69526620 D1 DE69526620 D1 DE 69526620D1 DE 69526620 T DE69526620 T DE 69526620T DE 69526620 T DE69526620 T DE 69526620T DE 69526620 D1 DE69526620 D1 DE 69526620D1
- Authority
- DE
- Germany
- Prior art keywords
- wavelength division
- division multiplex
- optical amplifiers
- multiplex systems
- systems
- 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
- 230000003287 optical effect Effects 0.000 title 1
Classifications
-
- 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
- H04B10/29—Repeaters
- H04B10/291—Repeaters in which processing or amplification is carried out without conversion of the main signal from optical form
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/10—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
- H01S3/10007—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating in optical amplifiers
- H01S3/10023—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating in optical amplifiers by functional association of additional optical elements, e.g. filters, gratings, reflectors
-
- 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
- H04B10/29—Repeaters
- H04B10/291—Repeaters in which processing or amplification is carried out without conversion of the main signal from optical form
- H04B10/293—Signal power control
- H04B10/294—Signal power control in a multiwavelength system, e.g. gain equalisation
- H04B10/2941—Signal power control in a multiwavelength system, e.g. gain equalisation using an equalising unit, e.g. a filter
-
- 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
- G02B6/29346—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 wave or beam interference
- G02B6/2935—Mach-Zehnder configuration, i.e. comprising separate splitting and combining means
- G02B6/29352—Mach-Zehnder configuration, i.e. comprising separate splitting and combining means in a light guide
- G02B6/29353—Mach-Zehnder configuration, i.e. comprising separate splitting and combining means in a light guide with a wavelength selective element in at least one light guide interferometer arm, e.g. grating, interference filter, resonator
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Plasma & Fusion (AREA)
- Optics & Photonics (AREA)
- Lasers (AREA)
- Optical Communication System (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9420132A GB9420132D0 (en) | 1994-10-05 | 1994-10-05 | Optical amplifiers |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69526620D1 true DE69526620D1 (de) | 2002-06-13 |
DE69526620T2 DE69526620T2 (de) | 2003-02-20 |
Family
ID=10762415
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69526620T Expired - Fee Related DE69526620T2 (de) | 1994-10-05 | 1995-09-08 | Optische Verstärker für Wellenlängenmultiplexsysteme |
Country Status (5)
Country | Link |
---|---|
US (1) | US5608571A (de) |
EP (1) | EP0706270B1 (de) |
JP (1) | JPH08213681A (de) |
DE (1) | DE69526620T2 (de) |
GB (1) | GB9420132D0 (de) |
Families Citing this family (35)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9191117B2 (en) * | 1995-05-11 | 2015-11-17 | Ciena Corporation | High-speed optical transponder systems |
US5715076A (en) * | 1995-05-11 | 1998-02-03 | Ciena Corporation | Remodulating channel selectors for WDM optical communication systems |
US6233077B1 (en) * | 1995-05-11 | 2001-05-15 | Ciena Corporation | Remodulating channel selectors for WDM optical communication systems |
GB2308222B (en) * | 1995-12-16 | 1997-11-12 | Northern Telecom Ltd | Gain clamped amplifier |
US5742416A (en) * | 1996-03-28 | 1998-04-21 | Ciena Corp. | Bidirectional WDM optical communication systems with bidirectional optical amplifiers |
US5790722A (en) * | 1996-04-16 | 1998-08-04 | Hughes Electronics | High power optical fiber amplifier/laser system |
JP3512050B2 (ja) * | 1996-06-11 | 2004-03-29 | 住友電気工業株式会社 | 光フィルタおよび光伝送システム |
JP4063908B2 (ja) * | 1997-01-29 | 2008-03-19 | 富士通株式会社 | 光源装置、光増幅器及び光通信システム |
US6047096A (en) * | 1997-03-07 | 2000-04-04 | Telefonaktiebolaget Lm Ericsson | Optical device |
US6400498B1 (en) | 1997-05-29 | 2002-06-04 | Nec Corporation | Optical signal repeating and amplifying device and optical level adjusting device |
WO1999007096A1 (en) | 1997-08-01 | 1999-02-11 | Pirelli Cavi E Sistemi S.P.A | Multi-band amplification system for dense wavelength division multiplexing |
US5978114A (en) * | 1997-08-29 | 1999-11-02 | Amphenol Corporation | Modular cascaded Mach-Zehnder DWDM components |
US6041152A (en) * | 1997-09-02 | 2000-03-21 | Amphenol Corporation | Multi-channel fiber optic communications system and multiplexer/demultiplexer arrangement therefor |
KR100424772B1 (ko) * | 1997-11-14 | 2004-05-17 | 삼성전자주식회사 | 광증폭기시스템 |
US5991069A (en) * | 1998-01-22 | 1999-11-23 | Tyco Submarine Systems, Ltd. | Split-pumped dual stage optical fiber amplifier |
JP3264246B2 (ja) * | 1998-03-31 | 2002-03-11 | 日本電気株式会社 | 光増幅器 |
EP0959577B1 (de) * | 1998-05-19 | 2007-09-05 | Nec Corporation | Vorrichtung zur Verstärkerung und Zwischenverstärkerung von optischen Signalen und vorrichtung zur Pegeleinstellung von optischen Signalen |
CA2244160A1 (en) * | 1998-08-26 | 2000-02-26 | Hamid Hatami-Hanza | High gain, high power, low noise optical waveguide amplifiers |
US6204958B1 (en) * | 1998-10-08 | 2001-03-20 | Ciena Corporation | Optical amplifier having a substantially flat gain spectrum |
SE514069C2 (sv) * | 1999-04-30 | 2000-12-18 | Ericsson Telefon Ab L M | Optiskt våglängdsselektivt filter samt förfarande för att selektivt filtrera minst en våglängd från en grupp av våglängder |
GB2363014B (en) * | 1999-06-30 | 2002-02-13 | Marconi Comm Ltd | Optical System |
FR2796164B1 (fr) * | 1999-07-08 | 2002-01-25 | Cit Alcatel | Filtre optique a fibre a reseau de bragg avec une reponse temps de groupe constante dans la bande utile |
US6885824B1 (en) | 2000-03-03 | 2005-04-26 | Optical Coating Laboratory, Inc. | Expandable optical array |
US6353497B1 (en) | 2000-03-03 | 2002-03-05 | Optical Coating Laboratory, Inc. | Integrated modular optical amplifier |
FR2807590B1 (fr) * | 2000-04-11 | 2002-06-28 | Ifotec | Dispositif de transmission a fibres optiques et a multiplexage en longueur d'onde |
KR100351672B1 (ko) * | 2000-06-12 | 2002-09-11 | 한국과학기술원 | 전광자동이득조절 기능을 갖는 양방향 애드/드롭 광증폭기 |
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 |
US6433924B1 (en) | 2000-11-14 | 2002-08-13 | Optical Coating Laboratory, Inc. | Wavelength-selective optical amplifier |
CA2430974A1 (en) * | 2002-06-03 | 2003-12-03 | Habib Fathallah | Lossless optical divider/combiner with pump diversion for scalable optical networks |
US6980355B2 (en) * | 2003-02-28 | 2005-12-27 | Intel Corporation | Wavelength-tunable amplified optical splitter |
US7256930B2 (en) * | 2003-04-15 | 2007-08-14 | Jian Liu | High power pulse shaping fiber laser for high data rate free space telecommunication systems |
JP2005039126A (ja) * | 2003-07-17 | 2005-02-10 | Sumitomo Electric Ind Ltd | 広帯域光源 |
US7209283B2 (en) * | 2004-04-07 | 2007-04-24 | Avago Technologies Fiber Ip (Singapore) Pte. Ltd. | Compact optical amplifier with a flattened gain profile |
US9851510B2 (en) * | 2008-07-14 | 2017-12-26 | Chiral Photonics, Inc. | Phase locking optical fiber coupler |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2043240A (en) * | 1979-03-01 | 1980-10-01 | Post Office | Improvements in or relating to the switching of signals |
JPH0681119B2 (ja) * | 1986-04-17 | 1994-10-12 | 日本電気株式会社 | 波長多重光伝送方式 |
DE3885389T2 (de) * | 1987-09-01 | 1994-03-24 | Nippon Electric Co | Optischer Zwischenverstärker. |
JPH03269522A (ja) * | 1990-03-20 | 1991-12-02 | Fujikura Ltd | 波長多重光伝送路増幅装置 |
US5260823A (en) * | 1990-05-21 | 1993-11-09 | University Of Southampton | Erbium-doped fibre amplifier with shaped spectral gain |
JP3110805B2 (ja) * | 1991-07-01 | 2000-11-20 | 富士通株式会社 | 光中継システム |
GB2265059B (en) * | 1992-03-04 | 1995-07-26 | Northern Telecom Ltd | Optical regenerators |
US5283686A (en) * | 1992-07-27 | 1994-02-01 | General Instrument Corporation, Jerrold Communications | Optical systems with grating reflector |
US5271024A (en) * | 1992-07-27 | 1993-12-14 | General Instrument Corporation | Optical fiber amplifier and laser with flattened gain slope |
GB9305977D0 (en) * | 1993-03-23 | 1993-05-12 | Northern Telecom Ltd | Transmission system incorporating optical amplifiers |
US5323404A (en) * | 1993-11-02 | 1994-06-21 | At&T Bell Laboratories | Optical fiber laser or amplifier including high reflectivity gratings |
-
1994
- 1994-10-05 GB GB9420132A patent/GB9420132D0/en active Pending
-
1995
- 1995-09-08 DE DE69526620T patent/DE69526620T2/de not_active Expired - Fee Related
- 1995-09-08 EP EP95306310A patent/EP0706270B1/de not_active Expired - Lifetime
- 1995-10-05 US US08/539,626 patent/US5608571A/en not_active Expired - Fee Related
- 1995-10-05 JP JP7284506A patent/JPH08213681A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
EP0706270A1 (de) | 1996-04-10 |
EP0706270B1 (de) | 2002-05-08 |
GB9420132D0 (en) | 1994-11-16 |
JPH08213681A (ja) | 1996-08-20 |
US5608571A (en) | 1997-03-04 |
DE69526620T2 (de) | 2003-02-20 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8332 | No legal effect for de | ||
8370 | Indication related to discontinuation of the patent is to be deleted | ||
8339 | Ceased/non-payment of the annual fee |