BE805625R - Amplificateur intermediaire pour un systeme de transmission d'informations - Google Patents
Amplificateur intermediaire pour un systeme de transmission d'informationsInfo
- Publication number
- BE805625R BE805625R BE136309A BE136309A BE805625R BE 805625 R BE805625 R BE 805625R BE 136309 A BE136309 A BE 136309A BE 136309 A BE136309 A BE 136309A BE 805625 R BE805625 R BE 805625R
- Authority
- BE
- Belgium
- Prior art keywords
- transmission system
- information transmission
- intermediate amplifier
- amplifier
- information
- Prior art date
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
- H04B10/2912—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
- H04B10/2914—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 using lumped semiconductor optical amplifiers [SOA]
-
- 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
- H01S5/00—Semiconductor lasers
- H01S5/02—Structural details or components not essential to laser action
- H01S5/026—Monolithically integrated components, e.g. waveguides, monitoring photo-detectors, drivers
-
- 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
- H01S5/00—Semiconductor lasers
- H01S5/02—Structural details or components not essential to laser action
- H01S5/028—Coatings ; Treatment of the laser facets, e.g. etching, passivation layers or reflecting layers
-
- 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
- H01S5/00—Semiconductor lasers
- H01S5/50—Amplifier structures not provided for in groups H01S5/02 - H01S5/30
-
- 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
- H04B10/2933—Signal power control considering the whole optical path
- H04B10/2937—Systems with a repeater placed only at the beginning or the end of the system, i.e. repeaterless systems, e.g. systems with only post and pre-amplification
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Optical Integrated Circuits (AREA)
- Semiconductor Lasers (AREA)
- Optical Communication System (AREA)
- Lasers (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2248371A DE2248371C2 (de) | 1972-10-03 | 1972-10-03 | In einen optischen Wellenleiter für ein optisches Nachrichtenübertragungssystem integrierter Zwischenverstärker |
Publications (1)
Publication Number | Publication Date |
---|---|
BE805625R true BE805625R (fr) | 1974-02-01 |
Family
ID=5858031
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE136309A BE805625R (fr) | 1972-10-03 | 1973-10-03 | Amplificateur intermediaire pour un systeme de transmission d'informations |
Country Status (10)
Country | Link |
---|---|
US (1) | US3949315A (fr) |
JP (1) | JPS4973993A (fr) |
BE (1) | BE805625R (fr) |
CA (1) | CA1006956A (fr) |
CH (1) | CH557605A (fr) |
DE (1) | DE2248371C2 (fr) |
GB (1) | GB1447117A (fr) |
IT (1) | IT1045701B (fr) |
LU (1) | LU68543A1 (fr) |
SE (2) | SE413063B (fr) |
Families Citing this family (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4139262A (en) * | 1974-09-06 | 1979-02-13 | Siemens Aktiengesellschaft | Filter for a light wave in a light guiding fiber |
US4162460A (en) * | 1976-05-26 | 1979-07-24 | Agency Of Industrial Science & Technology | Optical circuit element |
JPS5373003A (en) * | 1976-12-13 | 1978-06-29 | Nippon Telegr & Teleph Corp <Ntt> | Light fibre transmission system |
US4258336A (en) * | 1979-07-20 | 1981-03-24 | The United States Of America As Represented By The Secretary Of The Navy | Pulsed ring laser fiber gyro |
DE3025492A1 (de) * | 1980-07-04 | 1982-02-04 | Siemens AG, 1000 Berlin und 8000 München | Filterelement fuer die optische nachrichtentechnik |
US4558921A (en) * | 1982-02-25 | 1985-12-17 | At&T Bell Laboratories | Soliton fiber telecommunication systems |
GB8404782D0 (en) * | 1984-02-23 | 1984-03-28 | British Telecomm | Support member |
US4695126A (en) * | 1985-02-11 | 1987-09-22 | Dorran Photonics, Incorporated | Method and apparatus for effecting light energy transmission with lessened reflection |
SE449673B (sv) * | 1985-09-20 | 1987-05-11 | Ericsson Telefon Ab L M | Optisk forsterkaranordning med brusfilterfunktion |
JPH01289287A (ja) * | 1988-05-17 | 1989-11-21 | Kokusai Denshin Denwa Co Ltd <Kdd> | 半導体光増幅素子 |
US4963832A (en) * | 1989-08-08 | 1990-10-16 | At&T Bell Laboratories | Erbium-doped fiber amplifier coupling device |
KR910014726A (ko) * | 1990-01-19 | 1991-08-31 | 조오지 더블유.우드 | 광스위치 조립방법 |
US5037176A (en) * | 1990-01-19 | 1991-08-06 | Adc Telecommunications, Inc. | Optical switch with reduced reflection |
GB2246234A (en) * | 1990-05-21 | 1992-01-22 | Univ Southampton | Optical amplifier with shaped spectral gain |
US5260823A (en) * | 1990-05-21 | 1993-11-09 | University Of Southampton | Erbium-doped fibre amplifier with shaped spectral gain |
US5115338A (en) * | 1990-05-30 | 1992-05-19 | At&T Bell Laboratories | Multi-stage optical amplifier |
US5231465A (en) * | 1991-02-08 | 1993-07-27 | Litton Systems, Inc. | High efficiency fiber absorber and method for attenuating pump light in a broadband fiber optic light source |
US5252820A (en) * | 1991-03-11 | 1993-10-12 | Mitsubishi Denki Kabushiki Kaisha | Photoelectric conversion circuit having a tuning circuit and changeover switcher |
GB2254183B (en) * | 1991-03-27 | 1995-01-18 | Marconi Gec Ltd | An amplifier/filter combination |
US5187610A (en) * | 1991-12-19 | 1993-02-16 | At&T Bell Laboratories | Low noise, optical amplifier having post-amplification loss element |
US5838868A (en) * | 1995-06-30 | 1998-11-17 | Syracuse University | Semiconductor fiber light amplifier |
DE19625870A1 (de) * | 1996-06-27 | 1998-01-08 | Schleifring & Apparatebau Gmbh | Vorrichtung zum Empfang optischer Signale mit einem lichtleitenden Gegenstand |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1101792B (de) * | 1952-04-19 | 1961-03-09 | Technicolor Motion Picture | Prismatischer Strahlenteilerkoerper |
US2780130A (en) * | 1954-01-29 | 1957-02-05 | Eastman Kodak Co | Reflex sight having a dichroic beamcombining mirror |
US3214702A (en) * | 1964-02-10 | 1965-10-26 | Corning Glass Works | Traveling wave laser amplifier with glass filter |
DE1622862B1 (de) * | 1964-04-16 | 1969-12-04 | Agfa Ag | Optisches Kantenfilter |
US3417345A (en) * | 1964-08-21 | 1968-12-17 | Hughes Aircraft Co | High radiance laser |
US3630809A (en) * | 1965-01-04 | 1971-12-28 | Monsanto Co | Pellucid laminates |
US3571737A (en) * | 1968-06-07 | 1971-03-23 | Bell Telephone Labor Inc | Transmission line |
US3626319A (en) * | 1970-04-14 | 1971-12-07 | Warner Lambert Pharmaceutical | Laser structures and the like |
US3751655A (en) * | 1971-11-12 | 1973-08-07 | G Codrino | Diffuser with one or more attachment members for light guiding cables and provided with a light attenuating device |
DE2422954A1 (de) * | 1974-05-11 | 1975-11-13 | Bayer Ag | Mittel zur reduzierung der drift beim ausbringen waessriger spritzbruehen von pflanzenschutzmitteln |
-
1972
- 1972-10-03 DE DE2248371A patent/DE2248371C2/de not_active Expired
-
1973
- 1973-08-15 GB GB3851773A patent/GB1447117A/en not_active Expired
- 1973-09-12 CH CH1303073A patent/CH557605A/xx not_active IP Right Cessation
- 1973-09-21 US US05/399,633 patent/US3949315A/en not_active Expired - Lifetime
- 1973-09-28 IT IT29507/73A patent/IT1045701B/it active
- 1973-10-01 LU LU68543A patent/LU68543A1/xx unknown
- 1973-10-02 CA CA182,399A patent/CA1006956A/en not_active Expired
- 1973-10-02 SE SE7313393A patent/SE413063B/xx unknown
- 1973-10-03 JP JP48111313A patent/JPS4973993A/ja active Pending
- 1973-10-03 BE BE136309A patent/BE805625R/fr not_active IP Right Cessation
-
1978
- 1978-07-28 SE SE7808231A patent/SE7808231L/xx unknown
Also Published As
Publication number | Publication date |
---|---|
JPS4973993A (fr) | 1974-07-17 |
DE2248371C2 (de) | 1985-12-05 |
LU68543A1 (fr) | 1973-12-10 |
GB1447117A (en) | 1976-08-25 |
SE7808231L (sv) | 1978-07-28 |
US3949315A (en) | 1976-04-06 |
CA1006956A (en) | 1977-03-15 |
CH557605A (de) | 1974-12-31 |
SE413063B (sv) | 1980-03-13 |
AU6010373A (en) | 1975-03-13 |
DE2248371A1 (de) | 1974-04-11 |
IT1045701B (it) | 1980-06-10 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
BE805626R (fr) | Amplificateur intermediaire pour un systeme de transmission d'informations | |
BE805625R (fr) | Amplificateur intermediaire pour un systeme de transmission d'informations | |
BE805624R (fr) | Amplificateur intermediaire pour un systeme de transmission d'informations | |
BE805483A (fr) | Systeme porte-informations pour pret-a-porter | |
BE848057A (fr) | Systeme de recherche d'informations, | |
FR2353914A1 (fr) | Systeme pour classer et retrouver des informations | |
BE748673A (fr) | Systeme d'affichage d'informations, video | |
BE800369A (fr) | Indicateur de deroulement pour cassette de magnetophone | |
FR2322491A1 (fr) | Systeme de transmission d'informations | |
BE798191R (fr) | Systeme de transmission d'informations | |
BE779541A (fr) | Systeme pour la lecture automatique de signes | |
BE789175A (fr) | Amplificateur intermediaire pour un systeme de transmission d'informations | |
BE755811A (fr) | Selecteur pour appareils de reproduction automatique d'informations. | |
BE770454A (fr) | Systeme de transmission d'informations pour des rapports signal-bruit tres bas | |
BE803911A (fr) | Systeme de localisation de panne pour repeteurs | |
BE790393A (fr) | Systeme pour la transmission d'informations | |
BE823050A (fr) | Systeme multiplex de temps pour la transmission d'informations binaires | |
BE824603A (fr) | Systeme de transmission d'informations par satellite | |
BE820165R (fr) | Systeme de transmission d'informations | |
BE836880R (fr) | Systeme de transmission d'informations | |
BE793972A (fr) | Systeme de transmission d'informations | |
BE820952A (fr) | Systeme de detection d'informations | |
BE793740A (fr) | Systeme d'enregistrement magnetique | |
BE779048A (fr) | Systeme de communication d'informations en images | |
FR2276641A1 (fr) | Systeme de transfert d'informations |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
RE | Patent lapsed |
Owner name: SIEMENS A.G. Effective date: 19880930 |