DE2162143A1 - - Google Patents

Info

Publication number
DE2162143A1
DE2162143A1 DE19712162143 DE2162143A DE2162143A1 DE 2162143 A1 DE2162143 A1 DE 2162143A1 DE 19712162143 DE19712162143 DE 19712162143 DE 2162143 A DE2162143 A DE 2162143A DE 2162143 A1 DE2162143 A1 DE 2162143A1
Authority
DE
Germany
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
DE19712162143
Other languages
German (de)
Other versions
DE2162143C2 (enExample
DE2162143B1 (de
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 filed Critical
Priority to DE19712162143 priority Critical patent/DE2162143B1/de
Publication of DE2162143B1 publication Critical patent/DE2162143B1/de
Publication of DE2162143A1 publication Critical patent/DE2162143A1/de
Application granted granted Critical
Publication of DE2162143C2 publication Critical patent/DE2162143C2/de
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
    • H01S3/081—Construction or shape of optical resonators or components thereof comprising three or more reflectors
    • H01S3/082—Construction or shape of optical resonators or components thereof comprising three or more reflectors defining a plurality of resonators, e.g. for mode selection or suppression
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B9/00—Measuring instruments characterised by the use of optical techniques
    • G01B9/02—Interferometers
    • G01B9/02055—Reduction or prevention of errors; Testing; Calibration
    • G01B9/02062—Active error reduction, i.e. varying with time
    • G01B9/02067—Active error reduction, i.e. varying with time by electronic control systems, i.e. using feedback acting on optics or light
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B2290/00—Aspects of interferometers not specifically covered by any group under G01B9/02
    • G01B2290/25—Fabry-Perot in interferometer, e.g. etalon, cavity

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Optics & Photonics (AREA)
  • Electromagnetism (AREA)
  • Automation & Control Theory (AREA)
  • General Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Spectrometry And Color Measurement (AREA)
DE19712162143 1971-12-15 1971-12-15 Interferenzlaengenmessverfahren mit einem unstabilisierten laser als lichtquelle Granted DE2162143B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19712162143 DE2162143B1 (de) 1971-12-15 1971-12-15 Interferenzlaengenmessverfahren mit einem unstabilisierten laser als lichtquelle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712162143 DE2162143B1 (de) 1971-12-15 1971-12-15 Interferenzlaengenmessverfahren mit einem unstabilisierten laser als lichtquelle

Publications (3)

Publication Number Publication Date
DE2162143B1 DE2162143B1 (de) 1973-01-18
DE2162143A1 true DE2162143A1 (enExample) 1973-01-18
DE2162143C2 DE2162143C2 (enExample) 1975-04-03

Family

ID=5828013

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19712162143 Granted DE2162143B1 (de) 1971-12-15 1971-12-15 Interferenzlaengenmessverfahren mit einem unstabilisierten laser als lichtquelle

Country Status (1)

Country Link
DE (1) DE2162143B1 (enExample)

Also Published As

Publication number Publication date
DE2162143C2 (enExample) 1975-04-03
DE2162143B1 (de) 1973-01-18

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Legal Events

Date Code Title Description
E771 Valid patent as to the heymanns-index 1977, willingness to grant licences
EGA New person/name/address of the applicant
8339 Ceased/non-payment of the annual fee