NO912284L - Fasemodulering. - Google Patents

Fasemodulering.

Info

Publication number
NO912284L
NO912284L NO91912284A NO912284A NO912284L NO 912284 L NO912284 L NO 912284L NO 91912284 A NO91912284 A NO 91912284A NO 912284 A NO912284 A NO 912284A NO 912284 L NO912284 L NO 912284L
Authority
NO
Norway
Prior art keywords
modular ring
modulation
phase modular
injection
amplifier
Prior art date
Application number
NO91912284A
Other languages
English (en)
Other versions
NO912284D0 (no
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 NO912284D0 publication Critical patent/NO912284D0/no
Publication of NO912284L publication Critical patent/NO912284L/no

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)
  • Optical Communication System (AREA)
  • Gyroscopes (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Semiconductor Lasers (AREA)
  • Liquid Crystal Substances (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Materials For Medical Uses (AREA)
  • Prostheses (AREA)
  • Developing Agents For Electrophotography (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Valve Device For Special Equipments (AREA)

Abstract

En vandrebølge-laserforsterker (2) blir drevet som en fasemodulator ved å tilføre et modulasjons- signal på forspennings-injeksjonsstrømmen. For å øke modulasjonsfrekvens-responsen ved den høyere ende og minske uønsket amplitudemodulasjon, blir det optiske inngangs-signalet og injeksjons- forspenningsstrømmen fortrinnsvis innstilt slik at forsterkeren drives under metningsforsterknings- : betingelser.
NO91912284A 1988-12-14 1991-06-13 Fasemodulering. NO912284L (no)

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
NO912284D0 NO912284D0 (no) 1991-06-13
NO912284L true NO912284L (no) 1991-08-13

Family

ID=10648438

Family Applications (1)

Application Number Title Priority Date Filing Date
NO91912284A NO912284L (no) 1988-12-14 1991-06-13 Fasemodulering.

Country Status (12)

Country Link
EP (1) EP0373945B1 (no)
JP (1) JPH04502217A (no)
AT (1) ATE101284T1 (no)
AU (1) AU637073B2 (no)
CA (1) CA2005579C (no)
DE (1) DE68912911T2 (no)
DK (1) DK113991D0 (no)
FI (1) FI912839A0 (no)
GB (2) GB8829116D0 (no)
NO (1) NO912284L (no)
NZ (1) NZ231777A (no)
WO (1) WO1990007141A1 (no)

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
JPWO2023012897A1 (no) * 2021-08-03 2023-02-09

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
EP0228434B1 (en) * 1985-06-19 1990-12-27 BRITISH TELECOMMUNICATIONS public limited company Optical coupling assembly
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
JPH04502217A (ja) 1992-04-16
AU4749890A (en) 1990-07-10
NZ231777A (en) 1993-03-26
CA2005579A1 (en) 1990-06-14
DE68912911T2 (de) 1994-05-19
WO1990007141A1 (en) 1990-06-28
GB2254480A (en) 1992-10-07
FI912839A0 (fi) 1991-06-12
NO912284D0 (no) 1991-06-13
DE68912911D1 (de) 1994-03-17
GB8829116D0 (en) 1989-01-25
EP0373945A1 (en) 1990-06-20
AU637073B2 (en) 1993-05-20
GB9112112D0 (en) 1991-07-24
CA2005579C (en) 1997-08-12
DK113991A (da) 1991-06-13
EP0373945B1 (en) 1994-02-02
ATE101284T1 (de) 1994-02-15
DK113991D0 (da) 1991-06-13

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