GB2192090B - Computer controlled tuning of lasers - Google Patents

Computer controlled tuning of lasers

Info

Publication number
GB2192090B
GB2192090B GB08717608A GB8717608A GB2192090B GB 2192090 B GB2192090 B GB 2192090B GB 08717608 A GB08717608 A GB 08717608A GB 8717608 A GB8717608 A GB 8717608A GB 2192090 B GB2192090 B GB 2192090B
Authority
GB
United Kingdom
Prior art keywords
lasers
computer controlled
controlled tuning
tuning
computer
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.)
Expired
Application number
GB08717608A
Other languages
English (en)
Other versions
GB8717608D0 (en
GB2192090A (en
Inventor
David William James
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.)
University of Queensland UQ
Commonwealth of Australia
Original Assignee
University of Queensland UQ
Commonwealth of Australia
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 University of Queensland UQ, Commonwealth of Australia filed Critical University of Queensland UQ
Publication of GB8717608D0 publication Critical patent/GB8717608D0/en
Publication of GB2192090A publication Critical patent/GB2192090A/en
Application granted granted Critical
Publication of GB2192090B publication Critical patent/GB2192090B/en
Expired 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
    • H01S3/10—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
    • H01S3/13—Stabilisation of laser output parameters, e.g. frequency or amplitude
    • H01S3/139—Stabilisation of laser output parameters, e.g. frequency or amplitude by controlling the mutual position or the reflecting properties of the reflectors of the cavity, e.g. by controlling the cavity length
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
    • G01M3/24—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using infrasonic, sonic, or ultrasonic vibrations
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/38—Investigating fluid-tightness of structures by using light
    • 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
    • H01S3/0014—Monitoring arrangements not otherwise provided for
    • 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
    • H01S3/10—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
    • H01S3/105—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling the mutual position or the reflecting properties of the reflectors of the cavity, e.g. by controlling the cavity length
    • H01S3/1055—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling the mutual position or the reflecting properties of the reflectors of the cavity, e.g. by controlling the cavity length one of the reflectors being constituted by a diffraction grating

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Optics & Photonics (AREA)
  • General Physics & Mathematics (AREA)
  • Lasers (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
GB08717608A 1985-02-08 1986-02-04 Computer controlled tuning of lasers Expired GB2192090B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AUPG920485 1985-02-08
PCT/AU1986/000026 WO1986004746A1 (en) 1985-02-08 1986-02-04 Computer controlled tuning of lasers

Publications (3)

Publication Number Publication Date
GB8717608D0 GB8717608D0 (en) 1987-09-03
GB2192090A GB2192090A (en) 1987-12-31
GB2192090B true GB2192090B (en) 1989-01-25

Family

ID=3770937

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08717608A Expired GB2192090B (en) 1985-02-08 1986-02-04 Computer controlled tuning of lasers

Country Status (4)

Country Link
EP (1) EP0248797A4 (de)
JP (1) JPS62501947A (de)
GB (1) GB2192090B (de)
WO (1) WO1986004746A1 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3741455A1 (de) * 1987-12-08 1989-06-22 Standard Elektrik Lorenz Ag Optischer isolator
WO1996021850A1 (de) * 1995-01-14 1996-07-18 Gerhart Schroff Verfahren und anordnung zur dichtheitsprüfung
DE19616028C1 (de) * 1996-04-23 1997-07-24 Inst Physikalische Hochtech Ev Schmalbandiger Excimerlaser mit Umschaltung zwischen zwei vorgebbaren Laserwellenlängen und seine Verwendung
US6227036B1 (en) 1998-10-28 2001-05-08 The Regents Of The University Of Michigan Multiple microphone photoacoustic leak detection and localization system and method

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5015348A (en) * 1972-06-14 1991-05-14 Eerkens Jozef W High mass isotope separation arrangement
US3973134A (en) * 1975-02-18 1976-08-03 Allied Chemical Corporation Generation of coherent rotational anti-Stokes spectra
US4150342A (en) * 1977-07-05 1979-04-17 Coherent, Inc. Method and apparatus for automatically reacquiring a predetermined output radiation frequency in a tunable laser system despite momentary perturbations of laser oscillation
US4176959A (en) * 1978-04-17 1979-12-04 Raytheon Company High gain laser spectrometer
US4425648A (en) * 1980-12-29 1984-01-10 Rockwell International Corporation Wavelength selectivity of lasers and control thereof for rapid action measuring tasks

Also Published As

Publication number Publication date
GB8717608D0 (en) 1987-09-03
JPS62501947A (ja) 1987-07-30
WO1986004746A1 (en) 1986-08-14
GB2192090A (en) 1987-12-31
EP0248797A4 (de) 1989-04-27
EP0248797A1 (de) 1987-12-16

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee