IT1168860B - Dispositivo di regolazione di un disco laser - Google Patents

Dispositivo di regolazione di un disco laser

Info

Publication number
IT1168860B
IT1168860B IT48224/83A IT4822483A IT1168860B IT 1168860 B IT1168860 B IT 1168860B IT 48224/83 A IT48224/83 A IT 48224/83A IT 4822483 A IT4822483 A IT 4822483A IT 1168860 B IT1168860 B IT 1168860B
Authority
IT
Italy
Prior art keywords
adjustment device
laser disc
disc
laser
adjustment
Prior art date
Application number
IT48224/83A
Other languages
English (en)
Other versions
IT8348224A0 (it
Inventor
Didier Beaudet
Original Assignee
Telecomunications Sa De
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 Telecomunications Sa De filed Critical Telecomunications Sa De
Publication of IT8348224A0 publication Critical patent/IT8348224A0/it
Application granted granted Critical
Publication of IT1168860B publication Critical patent/IT1168860B/it

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
    • H04B10/50—Transmitters
    • H04B10/501—Structural aspects
    • H04B10/503—Laser transmitters
    • H04B10/504—Laser transmitters using direct modulation
    • 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
    • H04B10/564—Power control
IT48224/83A 1982-05-06 1983-05-04 Dispositivo di regolazione di un disco laser IT1168860B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8207845A FR2526554B1 (fr) 1982-05-06 1982-05-06 Procede de regulation de moyens emetteurs d'informations lumineuses et le systeme de mise en oeuvre

Publications (2)

Publication Number Publication Date
IT8348224A0 IT8348224A0 (it) 1983-05-04
IT1168860B true IT1168860B (it) 1987-05-20

Family

ID=9273774

Family Applications (1)

Application Number Title Priority Date Filing Date
IT48224/83A IT1168860B (it) 1982-05-06 1983-05-04 Dispositivo di regolazione di un disco laser

Country Status (4)

Country Link
US (1) US4504976A (it)
FR (1) FR2526554B1 (it)
GB (1) GB2123235B (it)
IT (1) IT1168860B (it)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4631726A (en) * 1983-02-28 1986-12-23 Minnesota Mining And Manufacturing Company Laser diode control circuitry
DE3608930A1 (de) * 1986-03-18 1987-09-24 Standard Elektrik Lorenz Ag Verfahren zur regelung der optischen leistung eines lasers und schaltung zur ausuebung des verfahrens
US4824201A (en) * 1987-07-13 1989-04-25 Bell Communications Research, Inc. Simultaneous transmission of LED and laser signals over single mode fiber
EP0313738B1 (de) * 1987-10-24 1993-12-01 KE KOMMUNIKATIONS-ELEKTRONIK GMBH & CO Verfahren zur bidirektionalen Uebertragung optischer Signale ueber Lichtwellenleiter
FR2622754B1 (fr) * 1987-10-29 1990-01-12 Alcatel Espace Systeme de transmission radiofrequence-optique, notamment dans le domaine des telecommunications spatiales
US4868894A (en) * 1987-12-09 1989-09-19 United Technologies System for transmitting microwave signals via an optical link
DE3817836A1 (de) * 1988-05-26 1989-11-30 Philips Patentverwaltung Optischer sender mit einer laserdiode
US5046138A (en) * 1989-06-26 1991-09-03 General Instrument Corporation Self-aligning analog laser transmitter
US5161044A (en) * 1989-07-11 1992-11-03 Harmonic Lightwaves, Inc. Optical transmitters linearized by means of parametric feedback
US5060310A (en) * 1989-08-10 1991-10-22 Tektronix, Inc. Apparatus and method for reduction of intermodulation distortion in an optical fiber network
US4995045A (en) * 1990-02-01 1991-02-19 Northern Telecom Limited Laser control circuit
DE69127840T2 (de) * 1990-03-01 1998-03-05 Fujitsu Ltd Optischer Sender
US5073983A (en) * 1990-03-05 1991-12-17 Motorola, Inc. Optical communication system with reduced distortion
US5003624A (en) * 1990-03-29 1991-03-26 Hughes Aircraft Company Automatic bias controller for electro-optic modulator
US5293263A (en) * 1990-09-07 1994-03-08 U.S. Philips Corporation Electro-optical modulator which provides optical bias stabilization during operation
EP0507394B1 (en) * 1991-04-03 1998-06-10 Koninklijke Philips Electronics N.V. Optical transmitter
JP3110805B2 (ja) * 1991-07-01 2000-11-20 富士通株式会社 光中継システム
JPH07240555A (ja) * 1994-02-25 1995-09-12 Fujitsu Ltd 自動バイアス電流制御型ａｐｃ回路を有する光送信器
US5515392A (en) * 1995-01-05 1996-05-07 Eastman Kodak Company Laser diode control circuit with power supply compensation network
US5579328A (en) * 1995-08-10 1996-11-26 Northern Telecom Limited Digital control of laser diode power levels
US5754577A (en) * 1996-07-23 1998-05-19 Broadband Communications Products, Inc. Compensation for variations in temperature and aging of laser diode by use of small signal, square-law portion of transfer function of diode detection circuit
US6016326A (en) * 1997-12-15 2000-01-18 Motorola, Inc. Method for biasing semiconductor lasers
EP1142179A1 (en) * 1998-12-15 2001-10-10 Ortel Corporation Circuit for suppressing noise and distortion in linear fiber optic links
US7139530B2 (en) * 2001-12-07 2006-11-21 Kyocera Wireless Corp. Method and apparatus for calibrating a reference oscillator

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE509946C (de) * 1928-10-16 1930-10-14 Telefunken Gmbh Empfangsanordnung mit Traegerwellenzusatz vermittels eines in der Frequenz automatisch geregelten lokalen Generators
DE856463C (de) * 1944-05-04 1952-11-20 Normalzeit G M B H Schaltungsanordnung fuer Fernsprechanlagen mit Waehlerbetrieb und mehreren Vermittlungsstellen
IT1117071B (it) * 1977-09-05 1986-02-10 Cselt Centro Studi Lab Telecom Dispositivo per trasmettere segnali multilivello su fibra ottica
GB1565764A (en) * 1978-02-02 1980-04-23 Standard Telephones Cables Ltd Optical fibre digital transmission systems
GB2025121B (en) * 1978-07-06 1982-05-19 Post Office Stabilisation of injection lasers
IT1160592B (it) * 1978-08-16 1987-03-11 Cselt Centro Studi Lab Telecom Procedimento e sistema di controllo dell'efficienza di un dispositivo elettronico
JPS5534535A (en) * 1978-08-31 1980-03-11 Fujitsu Ltd Light-pcm conversion repeating system
JPS5854536B2 (ja) * 1980-10-31 1983-12-05 株式会社東芝 歪補償方式

Also Published As

Publication number Publication date
IT8348224A0 (it) 1983-05-04
FR2526554B1 (fr) 1985-06-07
FR2526554A1 (fr) 1983-11-10
GB8312077D0 (en) 1983-06-08
GB2123235A (en) 1984-01-25
GB2123235B (en) 1985-12-18
US4504976A (en) 1985-03-12

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