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DK113991A - Fasemodulation - Google Patents

Fasemodulation Download PDF

Info

Publication number
DK113991A
DK113991A DK113991A DK113991A DK113991A DK 113991 A DK113991 A DK 113991A DK 113991 A DK113991 A DK 113991A DK 113991 A DK113991 A DK 113991A DK 113991 A DK113991 A DK 113991A
Authority
DK
Denmark
Prior art keywords
modulation
injection
amplifier
phase modulation
bias
Prior art date
Application number
DK113991A
Other languages
English (en)
Other versions
DK113991D0 (da
Inventor
John Mellis
Original Assignee
British Telecomm
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by British Telecomm filed Critical British Telecomm
Publication of DK113991A publication Critical patent/DK113991A/da
Publication of DK113991D0 publication Critical patent/DK113991D0/da

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
    • H01S5/50—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
    • H04B10/50—Transmitters
    • H04B10/501—Structural aspects
    • H04B10/503—Laser transmitters
    • H04B10/505—Laser transmitters using external modulation
    • 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
    • H01S5/06—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium
    • H01S5/062—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium by varying the potential of the electrodes
    • H01S5/06209—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium by varying the potential of the electrodes in single-section lasers
    • H01S5/06213—Amplitude modulation
    • 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
    • H01S5/06—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium
    • H01S5/062—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium by varying the potential of the electrodes
    • H01S5/06233—Controlling other output parameters than intensity or frequency
    • H01S5/06236—Controlling other output parameters than intensity or frequency controlling the polarisation, e.g. TM/TE polarisation switching
    • 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
    • H01S5/06—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium
    • H01S5/062—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium by varying the potential of the electrodes
    • H01S5/06233—Controlling other output parameters than intensity or frequency
    • H01S5/06246—Controlling other output parameters than intensity or frequency controlling the phase

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Gyroscopes (AREA)
  • Optical Communication System (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Semiconductor Lasers (AREA)
  • Liquid Crystal Substances (AREA)
  • Valve Device For Special Equipments (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Prostheses (AREA)
  • Developing Agents For Electrophotography (AREA)
  • Materials For Medical Uses (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
DK911139A 1988-12-14 1991-06-13 Fasemodulation DK113991D0 (da)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB888829116A GB8829116D0 (en) 1988-12-14 1988-12-14 Phase modulator
PCT/GB1989/001500 WO1990007141A1 (en) 1988-12-14 1989-12-14 Phase modulation

Publications (2)

Publication Number Publication Date
DK113991A true DK113991A (da) 1991-06-13
DK113991D0 DK113991D0 (da) 1991-06-13

Family

ID=10648438

Family Applications (1)

Application Number Title Priority Date Filing Date
DK911139A DK113991D0 (da) 1988-12-14 1991-06-13 Fasemodulation

Country Status (12)

Country Link
EP (1) EP0373945B1 (da)
JP (1) JPH04502217A (da)
AT (1) ATE101284T1 (da)
AU (1) AU637073B2 (da)
CA (1) CA2005579C (da)
DE (1) DE68912911T2 (da)
DK (1) DK113991D0 (da)
FI (1) FI912839A7 (da)
GB (2) GB8829116D0 (da)
NO (1) NO912284L (da)
NZ (1) NZ231777A (da)
WO (1) WO1990007141A1 (da)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0795160A (ja) * 1993-09-20 1995-04-07 Fujitsu Ltd 光増幅器の応答信号変調方法
SE502562C2 (sv) * 1994-03-03 1995-11-13 Ericsson Telefon Ab L M Förfarande och anordning för styrning av vandringsvågrör
CN1137847A (zh) * 1994-09-15 1996-12-11 菲利浦电子有限公司 光通信系统
DE59702522D1 (de) * 1996-11-11 2000-11-30 Contraves Space Ag Zuerich Verfahren und Vorrichtung zur Modulation eines optischen Trägers durch einen Halbleiterverstärker
US6313939B1 (en) * 2000-09-22 2001-11-06 Charles Christopher Romaniuk Optical phase oscillator with a maximum output amplifier
US7230712B2 (en) 2003-11-03 2007-06-12 Battelle Memorial Institute Reduction of residual amplitude modulation in frequency-modulated signals
US7102751B2 (en) 2003-11-11 2006-09-05 Battelle Memorial Institute Laser-based spectroscopic detection techniques
US8045862B2 (en) 2004-02-27 2011-10-25 Alcatel Lucent Optical communication method and apparatus
US8184362B2 (en) * 2009-06-15 2012-05-22 The Boeing Company Phase control and locking method for coherently combining high-gain multi-stage fiber amplifiers
US20250096902A1 (en) * 2021-08-03 2025-03-20 Nippon Telegraph And Telephone Corporation Optical transmitting apparatus, optical transmission system and optical transmission method

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4092443A (en) * 1976-02-19 1978-05-30 Ciba-Geigy Corporation Method for making reinforced composites
JP2561464B2 (ja) * 1985-06-19 1996-12-11 ブリティシュ・テレコミュニケーションズ・パブリック・リミテッド・カンパニ 光結合アセンブリ
JPS6219454A (ja) * 1985-07-19 1987-01-28 三菱化学株式会社 防曇性ポリプロピレンフイルム
US4794351A (en) * 1986-09-29 1988-12-27 American Telephone And Telegraph Company, At&T Bell Laboratories Optical mixer for upconverting or downconverting an optical signal

Also Published As

Publication number Publication date
GB2254480B (en) 1993-05-19
EP0373945B1 (en) 1994-02-02
ATE101284T1 (de) 1994-02-15
NO912284L (no) 1991-08-13
FI912839A0 (fi) 1991-06-12
AU637073B2 (en) 1993-05-20
NZ231777A (en) 1993-03-26
DE68912911T2 (de) 1994-05-19
GB8829116D0 (en) 1989-01-25
EP0373945A1 (en) 1990-06-20
DE68912911D1 (de) 1994-03-17
NO912284D0 (no) 1991-06-13
WO1990007141A1 (en) 1990-06-28
FI912839A7 (fi) 1991-06-12
AU4749890A (en) 1990-07-10
DK113991D0 (da) 1991-06-13
JPH04502217A (ja) 1992-04-16
CA2005579C (en) 1997-08-12
CA2005579A1 (en) 1990-06-14
GB2254480A (en) 1992-10-07
GB9112112D0 (en) 1991-07-24

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Legal Events

Date Code Title Description
AHB Application shelved due to non-payment