JPS5596691A - Ring laser oscillator - Google Patents

Ring laser oscillator

Info

Publication number
JPS5596691A
JPS5596691A JP513679A JP513679A JPS5596691A JP S5596691 A JPS5596691 A JP S5596691A JP 513679 A JP513679 A JP 513679A JP 513679 A JP513679 A JP 513679A JP S5596691 A JPS5596691 A JP S5596691A
Authority
JP
Japan
Prior art keywords
laser
oscillator
ring
light
tubes
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
JP513679A
Other languages
Japanese (ja)
Inventor
Yoshio Hatsuda
Takashi Tsuchiya
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co Ltd
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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP513679A priority Critical patent/JPS5596691A/en
Publication of JPS5596691A publication Critical patent/JPS5596691A/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)
  • Gyroscopes (AREA)
  • Lasers (AREA)

Abstract

PURPOSE:To improve the measuring accuracy of a ring laser oscillator by forming predetermined slit in the optical path of a ring oscillator to thereby reduce the diameter of the light beam, thereby reducing the rear scattering of a laser tube from its fine tube end and reducing the width of its lock-in region. CONSTITUTION:Laser oscillation is conducted with a ring oscillator having reflecting mirrors 2, 3, 4 and laser tubes 1, 1' disposed in the ring oscillator. Thus, laser lights 5, 6 are irradiated from the ring oscillator. A slit 10 having internally convexed conical surfaces at both surfaces blackened with carbon or the like on the inner surface is provided for a ring laser oscilator. Thus, the diameter of the light beam in the oscillator is sufficiently reduced lower than the diameter of the fine tubes of the laser tubes 1, 1'. Even if laser oscillated scattered light is existed in the inner surface of the slit, the light scattered backwardly is extremely reduced as compared with the case that the light is irradiated to the fine tubes 1, 1' thereby largely reducing the rear scattered light.
JP513679A 1979-01-19 1979-01-19 Ring laser oscillator Pending JPS5596691A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP513679A JPS5596691A (en) 1979-01-19 1979-01-19 Ring laser oscillator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP513679A JPS5596691A (en) 1979-01-19 1979-01-19 Ring laser oscillator

Publications (1)

Publication Number Publication Date
JPS5596691A true JPS5596691A (en) 1980-07-23

Family

ID=11602884

Family Applications (1)

Application Number Title Priority Date Filing Date
JP513679A Pending JPS5596691A (en) 1979-01-19 1979-01-19 Ring laser oscillator

Country Status (1)

Country Link
JP (1) JPS5596691A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5659321A (en) * 1993-09-15 1997-08-19 Endress+Hauser Gmbh+Co. Radar distance measuring device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5659321A (en) * 1993-09-15 1997-08-19 Endress+Hauser Gmbh+Co. Radar distance measuring device

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