DE69318599D1 - Optische Relaisstation - Google Patents
Optische RelaisstationInfo
- Publication number
- DE69318599D1 DE69318599D1 DE69318599T DE69318599T DE69318599D1 DE 69318599 D1 DE69318599 D1 DE 69318599D1 DE 69318599 T DE69318599 T DE 69318599T DE 69318599 T DE69318599 T DE 69318599T DE 69318599 D1 DE69318599 D1 DE 69318599D1
- Authority
- DE
- Germany
- Prior art keywords
- relay station
- optical relay
- optical
- station
- relay
- 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
- 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
-
- 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
- H04B10/2912—Repeaters in which processing or amplification is carried out without conversion of the main signal from optical form characterised by the medium used for amplification or processing
-
- 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
- H01S2301/00—Functional characteristics
- H01S2301/04—Gain spectral shaping, flattening
-
- 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
- H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
- H01S3/06—Construction or shape of active medium
- H01S3/063—Waveguide lasers, i.e. whereby the dimensions of the waveguide are of the order of the light wavelength
- H01S3/067—Fibre lasers
- H01S3/06708—Constructional details of the fibre, e.g. compositions, cross-section, shape or tapering
- H01S3/06725—Fibre characterized by a specific dispersion, e.g. for pulse shaping in soliton lasers or for dispersion compensating [DCF]
-
- 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
- H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
- H01S3/06—Construction or shape of active medium
- H01S3/063—Waveguide lasers, i.e. whereby the dimensions of the waveguide are of the order of the light wavelength
- H01S3/067—Fibre lasers
- H01S3/0675—Resonators including a grating structure, e.g. distributed Bragg reflectors [DBR] or distributed feedback [DFB] fibre lasers
-
- 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
- H01S3/23—Arrangements of two or more lasers not provided for in groups H01S3/02 - H01S3/22, e.g. tandem arrangements of separate active media
- H01S3/2308—Amplifier arrangements, e.g. MOPA
- H01S3/2325—Multi-pass amplifiers, e.g. regenerative amplifiers
- H01S3/2333—Double-pass amplifiers
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 |
---|---|---|---|
GB9204650A GB2265059B (en) | 1992-03-04 | 1992-03-04 | Optical regenerators |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69318599D1 true DE69318599D1 (de) | 1998-06-25 |
DE69318599T2 DE69318599T2 (de) | 1998-09-10 |
Family
ID=10711466
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69318599T Expired - Fee Related DE69318599T2 (de) | 1992-03-04 | 1993-02-18 | Optische Relaisstation |
Country Status (5)
Country | Link |
---|---|
US (1) | US5434702A (de) |
EP (1) | EP0559356B1 (de) |
JP (1) | JPH065959A (de) |
DE (1) | DE69318599T2 (de) |
GB (1) | GB2265059B (de) |
Families Citing this family (39)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5600473A (en) * | 1993-06-04 | 1997-02-04 | Ciena Corporation | Optical amplifier systems with add/drop multiplexing |
GB2281670B (en) * | 1993-09-01 | 1998-01-28 | Northern Telecom Ltd | WDM optical communication system |
FR2715017B1 (fr) * | 1994-01-13 | 1996-02-16 | Alcatel Nv | Procédé de transmission et liaison optique à multiplexage spectral avec amplification. |
US5430817A (en) * | 1994-03-31 | 1995-07-04 | At&T Corp. | Optical systems and devices using long period spectral shaping devices |
FR2718588A1 (fr) * | 1994-04-07 | 1995-10-13 | Cit Alcatel | Dispositif d'égalisation, en fonction de la longueur d'onde, d'un gain appliqué à un signal optique. |
GB9411061D0 (en) * | 1994-06-02 | 1994-07-20 | Northern Telecom Ltd | Optical waveguide amplifiers |
GB2289978B (en) * | 1994-06-02 | 1997-11-26 | Northern Telecom Ltd | Optical waveguide amplifiers |
US5598294A (en) * | 1994-08-18 | 1997-01-28 | Matsushita Electric Industrial Co., Ltd. | Optical fiber amplifier and optical fiber communication system |
GB9420132D0 (en) * | 1994-10-05 | 1994-11-16 | Norhern Telecom Limited | Optical amplifiers |
US5548671A (en) * | 1994-10-13 | 1996-08-20 | Northern Telecom Limited | Programmable, differential wavelength discriminator |
GB9423105D0 (en) * | 1994-11-16 | 1995-01-04 | Northern Telecom Ltd | Optical wave grating filter |
US5541766A (en) * | 1994-11-30 | 1996-07-30 | At&T Corp. | Gain control for optically amplified systems |
FR2731524B1 (fr) * | 1995-02-28 | 1997-04-18 | Alcatel Optronics | Amplificateur optique a fibre a pompage bidirectionnel |
KR0171832B1 (ko) * | 1995-08-04 | 1999-05-01 | 김광호 | 다중단 접속이 가능한 광아이솔레이터를 사용한 광증폭장치 |
CA2185865C (en) * | 1995-09-26 | 2002-07-16 | Richard Edward Epworth | Dispersion compensation |
JP3327081B2 (ja) * | 1995-12-04 | 2002-09-24 | ケイディーディーアイ株式会社 | 光伝送システム |
US5647040A (en) * | 1995-12-14 | 1997-07-08 | Corning Incorporated | Tunable optical coupler using photosensitive glass |
IT1283405B1 (it) * | 1996-03-11 | 1998-04-21 | Pirelli Cavi S P A Ora Pirelli | Metodo di compensazione selettiva della dispersione cromatica di segnali ottici |
US5790722A (en) * | 1996-04-16 | 1998-08-04 | Hughes Electronics | High power optical fiber amplifier/laser system |
US5657148A (en) * | 1996-05-07 | 1997-08-12 | Lucent Technologies Inc. | Apparatus and method for a single-port modulator having amplification |
GB2315177A (en) * | 1996-07-06 | 1998-01-21 | Northern Telecom Ltd | Dispersion compensating waveguide for optical transmission systems |
JPH1032562A (ja) * | 1996-07-16 | 1998-02-03 | Fujitsu Ltd | 光アッド/ドロップ回路 |
US6115403A (en) * | 1997-07-22 | 2000-09-05 | Ciena Corporation | Directly modulated semiconductor laser having reduced chirp |
CA2244572A1 (en) * | 1997-08-12 | 1999-02-12 | Photonics Research Ontario | Design of complex optical fiber filters using long-period gratings |
US5903683A (en) * | 1997-09-10 | 1999-05-11 | The United States Of America As Represented By The National Security Agency | Device for modulating an optical signal using a single wave guide |
US6148011A (en) * | 1998-05-01 | 2000-11-14 | Institut National D'optique | Wavelength sliced self-seeded pulsed laser |
SE520951C2 (sv) * | 1998-06-17 | 2003-09-16 | Ericsson Telefon Ab L M | Multivåglängdsselektiv switch för switchning och omdirigering av optiska våglängder |
US6661942B1 (en) | 1998-07-20 | 2003-12-09 | Trans Photonics, Llc | Multi-functional optical switch (optical wavelength division multiplexer/demultiplexer, add-drop multiplexer and inter-connect device) and its methods of manufacture |
KR100353418B1 (ko) * | 1999-03-11 | 2002-09-18 | 삼성전자 주식회사 | 내부에 격자가 형성된 어븀 첨가 광섬유 제조방법 및 그에 따라 제조된 광섬유를 이용한 광섬유 증폭기 |
GB9915233D0 (en) | 1999-06-30 | 1999-09-01 | Marconi Comm Ltd | Optical system |
US6459526B1 (en) * | 1999-08-09 | 2002-10-01 | Corning Incorporated | L band amplifier with distributed filtering |
GB2368479A (en) * | 2000-10-24 | 2002-05-01 | Marconi Comm Ltd | Dispersion compensator |
US7189497B2 (en) * | 2002-07-24 | 2007-03-13 | Intel Corporation | Method for writing a planar waveguide having gratings of different center wavelengths |
US7526350B2 (en) | 2003-08-06 | 2009-04-28 | Creative Technology Ltd | Method and device to process digital media streams |
US7209283B2 (en) * | 2004-04-07 | 2007-04-24 | Avago Technologies Fiber Ip (Singapore) Pte. Ltd. | Compact optical amplifier with a flattened gain profile |
JP4698746B2 (ja) * | 2009-04-23 | 2011-06-08 | 富士通株式会社 | 波長分散補償器 |
GB201212878D0 (en) | 2012-07-20 | 2012-09-05 | Pike Justin | Authentication method and system |
GB201520741D0 (en) | 2015-05-27 | 2016-01-06 | Mypinpad Ltd And Licentia Group Ltd | Authentication methods and systems |
US11063406B1 (en) * | 2020-06-04 | 2021-07-13 | Acacia Communications, Inc. | Configuration for low-ripple optical gain with single-facet semiconductor optical amplifiers |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2161612B (en) * | 1984-07-11 | 1988-02-03 | Stc Plc | Optical fibre transmission systems |
US4778238A (en) * | 1985-08-01 | 1988-10-18 | Hicks John W | Optical communications systems and process for signal amplification using stimulated brillouin scattering (SBS) and laser utilized in the system |
US4749248A (en) * | 1985-11-06 | 1988-06-07 | American Telephone And Telegraph Company At&T Bell Laboratories | Device for tapping radiation from, or injecting radiation into, single made optical fiber, and communication system comprising same |
GB2189901B (en) * | 1986-04-25 | 1989-12-06 | Stc Plc | Laser induced optical fibre grating devices. |
GB8919799D0 (en) * | 1989-09-01 | 1989-10-18 | British Telecomm | Optical coupler |
US5260823A (en) * | 1990-05-21 | 1993-11-09 | University Of Southampton | Erbium-doped fibre amplifier with shaped spectral gain |
US5048909A (en) * | 1990-07-27 | 1991-09-17 | At&T Bell Laboratories | Adiabatic reflection apparatus |
GB2254183B (en) * | 1991-03-27 | 1995-01-18 | Marconi Gec Ltd | An amplifier/filter combination |
US5268910A (en) * | 1991-07-18 | 1993-12-07 | General Instrument Corporation | Superluminescent optical source |
US5191586A (en) * | 1991-07-18 | 1993-03-02 | General Instrument Corporation | Narrow band incoherent optical carrier generator |
US5187760A (en) * | 1992-01-23 | 1993-02-16 | General Instrument Corporation | Wavelength selective coupler for high power optical communications |
-
1992
- 1992-03-04 GB GB9204650A patent/GB2265059B/en not_active Expired - Fee Related
-
1993
- 1993-02-18 DE DE69318599T patent/DE69318599T2/de not_active Expired - Fee Related
- 1993-02-18 EP EP93301208A patent/EP0559356B1/de not_active Expired - Lifetime
- 1993-03-04 JP JP5044160A patent/JPH065959A/ja active Pending
-
1994
- 1994-12-22 US US08/363,572 patent/US5434702A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPH065959A (ja) | 1994-01-14 |
US5434702A (en) | 1995-07-18 |
DE69318599T2 (de) | 1998-09-10 |
EP0559356A1 (de) | 1993-09-08 |
GB9204650D0 (en) | 1992-04-15 |
EP0559356B1 (de) | 1998-05-20 |
GB2265059B (en) | 1995-07-26 |
GB2265059A (en) | 1993-09-15 |
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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 |