GB2025121B - Stabilisation of injection lasers - Google Patents

Stabilisation of injection lasers

Info

Publication number
GB2025121B
GB2025121B GB7829069A GB7829069A GB2025121B GB 2025121 B GB2025121 B GB 2025121B GB 7829069 A GB7829069 A GB 7829069A GB 7829069 A GB7829069 A GB 7829069A GB 2025121 B GB2025121 B GB 2025121B
Authority
GB
United Kingdom
Prior art keywords
stabilisation
injection lasers
lasers
injection
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
Application number
GB7829069A
Other versions
GB2025121A (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Post Office
Original Assignee
Post Office
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 Post Office filed Critical Post Office
Priority to GB7829069A priority Critical patent/GB2025121B/en
Publication of GB2025121A publication Critical patent/GB2025121A/en
Application granted granted Critical
Publication of GB2025121B publication Critical patent/GB2025121B/en
Expired legal-status Critical Current

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
    • H04B10/564—Power control
    • 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
    • H01S5/068—Stabilisation of laser output parameters
    • H01S5/0683—Stabilisation of laser output parameters by monitoring the optical output parameters
    • H01S5/06835—Stabilising during pulse modulation or generation
    • 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
    • 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
    • H01S5/068—Stabilisation of laser output parameters
    • H01S5/06812—Stabilisation of laser output parameters by monitoring or fixing the threshold current or other specific points of the L-I or V-I characteristics

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)
  • Semiconductor Lasers (AREA)
GB7829069A 1978-07-06 1978-07-06 Stabilisation of injection lasers Expired GB2025121B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7829069A GB2025121B (en) 1978-07-06 1978-07-06 Stabilisation of injection lasers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB7829069A GB2025121B (en) 1978-07-06 1978-07-06 Stabilisation of injection lasers

Publications (2)

Publication Number Publication Date
GB2025121A GB2025121A (en) 1980-01-16
GB2025121B true GB2025121B (en) 1982-05-19

Family

ID=10498290

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7829069A Expired GB2025121B (en) 1978-07-06 1978-07-06 Stabilisation of injection lasers

Country Status (1)

Country Link
GB (1) GB2025121B (en)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7907683A (en) * 1979-10-18 1981-04-22 Philips Nv CONTROL CHAIN FOR A LASER RATING CURRENT.
US4516242A (en) * 1981-06-18 1985-05-07 Tokyo Shibaura Denki Kabushiki Kaisha Output stabilizing device
DE3137497A1 (en) * 1981-09-21 1983-04-07 Siemens Ag OPTICAL TRANSMISSION SYSTEM FOR HIGH FREQUENCY DIGITAL SIGNALS
FR2524230B1 (en) * 1982-03-26 1986-01-10 Lignes Telegraph Telephon SYSTEM FOR TRANSMITTING INFORMATION ON A FIBER OPTIC TYPE SERVICE CHANNEL
FR2526554B1 (en) * 1982-05-06 1985-06-07 Telecommunications Sa METHOD FOR REGULATING LUMINOUS INFORMATION TRANSMITTERS AND THE IMPLEMENTING SYSTEM
FR2532802B1 (en) * 1982-09-07 1986-02-14 Lignes Telegraph Telephon INFORMATION TRANSMISSION SYSTEM COMPRISING A DEVICE FOR REGULATING INFORMATION LEVELS
DE3242481C2 (en) * 1982-11-18 1994-06-09 Ant Nachrichtentech Method for controlling the optical output signal of a semiconductor laser
DE3312044A1 (en) * 1983-04-02 1984-10-04 ANT Nachrichtentechnik GmbH, 7150 Backnang Method for regulating the output signal of a semiconductor laser
NL8301484A (en) * 1983-04-27 1984-11-16 Philips Nv OPTICAL TRANSMITTER.
DE3608930A1 (en) * 1986-03-18 1987-09-24 Standard Elektrik Lorenz Ag METHOD FOR REGULATING THE OPTICAL PERFORMANCE OF A LASER AND CIRCUIT FOR IMPLEMENTING THE METHOD
JPS6381881A (en) * 1986-09-25 1988-04-12 Minolta Camera Co Ltd Laser oscillator
JPS63164031A (en) * 1986-12-25 1988-07-07 Toshiba Corp Information storing and reproducing device
EP0331304B1 (en) * 1988-03-04 1993-11-24 BRITISH TELECOMMUNICATIONS public limited company Amplification of optical signals
AT393016B (en) * 1988-06-14 1991-07-25 Vaillant Gmbh Gas burner
GB2219165B (en) * 1988-05-27 1992-10-21 Stc Plc Optical transmission systems
EP0347202A3 (en) * 1988-06-14 1991-03-20 Brother Kogyo Kabushiki Kaisha Excitation system for a semiconductor laser device
DE3915982A1 (en) * 1989-05-17 1990-11-22 Basf Ag PULSE LASER
EP0407919B1 (en) * 1989-07-11 1996-04-24 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
GB2245756B (en) * 1990-06-23 1994-06-08 Stc Plc Digital driving of injection lasers
DE4127421A1 (en) * 1990-08-17 1993-01-07 Roman Koller Safety circuit for medical laser scalpel - detects parameters of test oscillation applied to all circuit components e.g. relay shutter, and power supply cut=off switch
GB2260667B (en) * 1991-10-19 1995-10-25 Northern Telecom Ltd Optical transmitters
JPH07240555A (en) * 1994-02-25 1995-09-12 Fujitsu Ltd Optical transmitter with self-bias current-controlled apc circuit
US5579328A (en) * 1995-08-10 1996-11-26 Northern Telecom Limited Digital control of laser diode power levels
US5953690A (en) * 1996-07-01 1999-09-14 Pacific Fiberoptics, Inc. Intelligent fiberoptic receivers and method of operating and manufacturing the same
US7792166B2 (en) 2005-06-24 2010-09-07 Lockheed Martin Corporation Apparatus and method for driving laser diodes

Also Published As

Publication number Publication date
GB2025121A (en) 1980-01-16

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Legal Events

Date Code Title Description
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19950706