JPS55166987A - Laser device - Google Patents

Laser device

Info

Publication number
JPS55166987A
JPS55166987A JP7584879A JP7584879A JPS55166987A JP S55166987 A JPS55166987 A JP S55166987A JP 7584879 A JP7584879 A JP 7584879A JP 7584879 A JP7584879 A JP 7584879A JP S55166987 A JPS55166987 A JP S55166987A
Authority
JP
Japan
Prior art keywords
light
directional coupler
waveguide
original
clockwise
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.)
Pending
Application number
JP7584879A
Other languages
Japanese (ja)
Inventor
Kenji Ikeda
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP7584879A priority Critical patent/JPS55166987A/en
Publication of JPS55166987A publication Critical patent/JPS55166987A/en
Pending 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
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
    • H01S3/08—Construction or shape of optical resonators or components thereof
    • H01S3/081—Construction or shape of optical resonators or components thereof comprising three or more reflectors
    • H01S3/083—Ring lasers

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Optics & Photonics (AREA)
  • Semiconductor Lasers (AREA)

Abstract

PURPOSE:To improve the transmission quality of a light communication by distincting the reflecting light with the original oscillating light to form a structure for concentrating the original oscillation light in gain and eliminating the affect of the reflected light. CONSTITUTION:The light generated in a gain region 5 is turned in both clockwise and counterclockwire. In case of counterclockwise light, it is partly picked up via a directional coupler 6 into a light waveguide 4, and the residue is again returned to the gain region 5, amplified and passed through the directional coupler 7 to be again introduced into the directional coupler 6. In case of clockwise light, it is not losed in the directional coupler 6, but introduced via the coupler 7 into a branch light waveguide 8 to become heat at the no-reflecting terminal 9 to be terminated. The counterclockwise light is the original necessary light outputted through the light pickup light waveguide 4.
JP7584879A 1979-06-13 1979-06-13 Laser device Pending JPS55166987A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7584879A JPS55166987A (en) 1979-06-13 1979-06-13 Laser device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7584879A JPS55166987A (en) 1979-06-13 1979-06-13 Laser device

Publications (1)

Publication Number Publication Date
JPS55166987A true JPS55166987A (en) 1980-12-26

Family

ID=13588035

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7584879A Pending JPS55166987A (en) 1979-06-13 1979-06-13 Laser device

Country Status (1)

Country Link
JP (1) JPS55166987A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5966181A (en) * 1982-10-07 1984-04-14 Sumitomo Electric Ind Ltd Integrated semiconductor laser gyro
JPH07283485A (en) * 1992-11-24 1995-10-27 Internatl Business Mach Corp <Ibm> Waveguide type optical isolator
JP2015002335A (en) * 2013-06-18 2015-01-05 日本電信電話株式会社 Integrated semiconductor light source

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5966181A (en) * 1982-10-07 1984-04-14 Sumitomo Electric Ind Ltd Integrated semiconductor laser gyro
JPH07283485A (en) * 1992-11-24 1995-10-27 Internatl Business Mach Corp <Ibm> Waveguide type optical isolator
JP2015002335A (en) * 2013-06-18 2015-01-05 日本電信電話株式会社 Integrated semiconductor light source

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