JPS6473686A - Laser device - Google Patents

Laser device

Info

Publication number
JPS6473686A
JPS6473686A JP62230715A JP23071587A JPS6473686A JP S6473686 A JPS6473686 A JP S6473686A JP 62230715 A JP62230715 A JP 62230715A JP 23071587 A JP23071587 A JP 23071587A JP S6473686 A JPS6473686 A JP S6473686A
Authority
JP
Japan
Prior art keywords
mirror
laser beam
phase
laser beams
window
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
JP62230715A
Other languages
Japanese (ja)
Other versions
JPH0463557B2 (en
Inventor
Kimiharu Yasui
Shigenori Yagi
Masaaki Tanaka
Masaki Kuzumoto
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 JP62230715A priority Critical patent/JPS6473686A/en
Priority to KR1019870013766A priority patent/KR910002229B1/en
Priority to DE8787118176T priority patent/DE3764783D1/en
Priority to EP87118176A priority patent/EP0271809B1/en
Publication of JPS6473686A publication Critical patent/JPS6473686A/en
Priority to US07/432,357 priority patent/US5058123A/en
Publication of JPH0463557B2 publication Critical patent/JPH0463557B2/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
    • 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
    • H01S3/08059—Constructional details of the reflector, e.g. shape
    • H01S3/08068—Holes; Stepped surface; Special cross-section
    • 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
    • H01S3/02—Constructional details
    • H01S3/03—Constructional details of gas laser discharge tubes
    • H01S3/034—Optical devices within, or forming part of, the tube, e.g. windows, mirrors
    • 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
    • H01S3/08081—Unstable resonators

Abstract

PURPOSE:To extract a laser beam of high quality by a method wherein two laser beams reflected at a peripheral part of a mirror and at a magnifying mirror are extracted to the outside after their mutual phase differences have been offset at an external face on the laser beam radiation side of the magnifying mirror and the peripheral part of the mirror. CONSTITUTION:Laser beams 70, 71 are extracted to the outside after passing through parts of two kinds of coating films 20, 5 out of a window mirror 4. Because a phase shift given to the laser beams to be passed through differs according to the kinds of the coating films, a phase difference is caused between the laser beams 70, 71 as long as a stepped part 200 does not exist and a thickness of the window mirror 4 is definite. For example, if a phase given to the laser beam passing through the partially reflecting film 20 of the window mirror 4 is advanced by delta as compared with a phase given to the laser beam passing through the reflection-free coating film 5, a depth d of the stepped part 200 used to correct this can be found from a formula: (n-1)d/lambda=delta. In this formula, (n) represents the refractive index of the material for the window mirror 4 and lambda represents the wavelength of the laser beam.
JP62230715A 1986-12-08 1987-09-14 Laser device Granted JPS6473686A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP62230715A JPS6473686A (en) 1987-09-14 1987-09-14 Laser device
KR1019870013766A KR910002229B1 (en) 1986-12-08 1987-12-03 Laser device
DE8787118176T DE3764783D1 (en) 1986-12-08 1987-12-08 LASER APPARATUS.
EP87118176A EP0271809B1 (en) 1986-12-08 1987-12-08 Laser apparatus
US07/432,357 US5058123A (en) 1986-12-08 1989-11-08 Laser apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62230715A JPS6473686A (en) 1987-09-14 1987-09-14 Laser device

Publications (2)

Publication Number Publication Date
JPS6473686A true JPS6473686A (en) 1989-03-17
JPH0463557B2 JPH0463557B2 (en) 1992-10-12

Family

ID=16912172

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62230715A Granted JPS6473686A (en) 1986-12-08 1987-09-14 Laser device

Country Status (1)

Country Link
JP (1) JPS6473686A (en)

Also Published As

Publication number Publication date
JPH0463557B2 (en) 1992-10-12

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Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term