JPS56150885A - Oscillating frequency stabilized semiconductor laser device - Google Patents

Oscillating frequency stabilized semiconductor laser device

Info

Publication number
JPS56150885A
JPS56150885A JP5400280A JP5400280A JPS56150885A JP S56150885 A JPS56150885 A JP S56150885A JP 5400280 A JP5400280 A JP 5400280A JP 5400280 A JP5400280 A JP 5400280A JP S56150885 A JPS56150885 A JP S56150885A
Authority
JP
Japan
Prior art keywords
frequency
laser
oscillating frequency
semiconductor laser
electro
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.)
Granted
Application number
JP5400280A
Other languages
Japanese (ja)
Other versions
JPS6342866B2 (en
Inventor
Takaaki Mukai
Shigeru Saito
Yoshihisa Yamamoto
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone Corp
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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP5400280A priority Critical patent/JPS56150885A/en
Publication of JPS56150885A publication Critical patent/JPS56150885A/en
Publication of JPS6342866B2 publication Critical patent/JPS6342866B2/ja
Granted legal-status Critical Current

Links

Classifications

    • 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
    • H01S5/0687—Stabilising the frequency of the laser
    • 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
    • H01S5/10—Construction or shape of the optical resonator, e.g. extended or external cavity, coupled cavities, bent-guide, varying width, thickness or composition of the active region
    • H01S5/14—External cavity lasers

Landscapes

  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Optics & Photonics (AREA)
  • Semiconductor Lasers (AREA)

Abstract

PURPOSE:To stabilize the oscillating frequency to a set frequency at a high speed and displace the oscillating frequency by internally containing an electro-optical phase modulator in a semiconductor laser and varying the oscillating frequency of the laser in accordance with an error signal from a frequency discriminator to a modulator. CONSTITUTION:A semiconductor laser 1 has a photoamplifying region and an electro-optical phase modulating region between reflectors 2 and 3 forming a resonator. A frequency discriminator 4 receives the output light (the laser light) from the resonator formed of the reflecting mirrors 2 and 3 of the laser 1 and feeds back an error signal corresponding to the frequency to an electro-optical position modulating region contained internally in the laser 1. It can stabilize the oscillating frequency to the set frequency at a high speed and can modulate the oscillating frequency by providing the laser 1 and the discriminator 4 as above.
JP5400280A 1980-04-23 1980-04-23 Oscillating frequency stabilized semiconductor laser device Granted JPS56150885A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5400280A JPS56150885A (en) 1980-04-23 1980-04-23 Oscillating frequency stabilized semiconductor laser device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5400280A JPS56150885A (en) 1980-04-23 1980-04-23 Oscillating frequency stabilized semiconductor laser device

Publications (2)

Publication Number Publication Date
JPS56150885A true JPS56150885A (en) 1981-11-21
JPS6342866B2 JPS6342866B2 (en) 1988-08-25

Family

ID=12958382

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5400280A Granted JPS56150885A (en) 1980-04-23 1980-04-23 Oscillating frequency stabilized semiconductor laser device

Country Status (1)

Country Link
JP (1) JPS56150885A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0258665A2 (en) * 1986-09-03 1988-03-09 Hitachi, Ltd. Semiconductor laser device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54157488A (en) * 1978-06-02 1979-12-12 Nippon Telegr & Teleph Corp <Ntt> Control unit for laser diode oscillation wave length

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54157488A (en) * 1978-06-02 1979-12-12 Nippon Telegr & Teleph Corp <Ntt> Control unit for laser diode oscillation wave length

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0258665A2 (en) * 1986-09-03 1988-03-09 Hitachi, Ltd. Semiconductor laser device

Also Published As

Publication number Publication date
JPS6342866B2 (en) 1988-08-25

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