FR2245108A1 - Emission of coherent light of two wavelengths - from a resonant cavity laser - Google Patents

Emission of coherent light of two wavelengths - from a resonant cavity laser

Info

Publication number
FR2245108A1
FR2245108A1 FR7334153A FR7334153A FR2245108A1 FR 2245108 A1 FR2245108 A1 FR 2245108A1 FR 7334153 A FR7334153 A FR 7334153A FR 7334153 A FR7334153 A FR 7334153A FR 2245108 A1 FR2245108 A1 FR 2245108A1
Authority
FR
France
Prior art keywords
laser
coherent light
branches
emission
path
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
FR7334153A
Other languages
French (fr)
Other versions
FR2245108B1 (en
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.)
Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
Original Assignee
Commissariat a lEnergie Atomique CEA
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 Commissariat a lEnergie Atomique CEA filed Critical Commissariat a lEnergie Atomique CEA
Priority to FR7334153A priority Critical patent/FR2245108A1/en
Publication of FR2245108A1 publication Critical patent/FR2245108A1/en
Application granted granted Critical
Publication of FR2245108B1 publication Critical patent/FR2245108B1/fr
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
    • H01S3/10—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
    • H01S3/106—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling devices placed within the cavity
    • H01S3/108—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling devices placed within the cavity using non-linear optical devices, e.g. exhibiting Brillouin or Raman scattering
    • 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
    • H01S3/0823—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 incorporating a dispersive element, e.g. a prism for wavelength selection
    • H01S3/0826—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 incorporating a dispersive element, e.g. a prism for wavelength selection using a diffraction grating
    • 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
    • H01S3/08086—Multiple-wavelength emission
    • H01S3/0809—Two-wavelenghth emission

Abstract

Successive emission from a laser of beams of coherent light of adjustable wavelength and duration comprises (a) interposing >=1 lamina in the path of the beam in the laser resonance cavity, designed to split the beam into at least two branches; (b) selecting by means of selector elements placed in >=1 branch of the beam, the resonating wave lengths of the laser cavity corresp. to the branches; (c) interrupting the path of light in a certain number of branches of the laser beam thus using the emission of successive pulses of coherent light, the wave lengths selected by the selector elements corresponding to the branches of the laser beam, the duration of each pulse being more or less equal to the time for which the path of the light in the two arms of the beam is not interrupted. Method permits a laser to emit successively beams of coherent light of different wave length at least for adjustable periods, the selection of wave lengths being made very simply without the need for optical systems which are difficult to regulate.
FR7334153A 1973-09-24 1973-09-24 Emission of coherent light of two wavelengths - from a resonant cavity laser Granted FR2245108A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7334153A FR2245108A1 (en) 1973-09-24 1973-09-24 Emission of coherent light of two wavelengths - from a resonant cavity laser

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7334153A FR2245108A1 (en) 1973-09-24 1973-09-24 Emission of coherent light of two wavelengths - from a resonant cavity laser

Publications (2)

Publication Number Publication Date
FR2245108A1 true FR2245108A1 (en) 1975-04-18
FR2245108B1 FR2245108B1 (en) 1976-06-18

Family

ID=9125461

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7334153A Granted FR2245108A1 (en) 1973-09-24 1973-09-24 Emission of coherent light of two wavelengths - from a resonant cavity laser

Country Status (1)

Country Link
FR (1) FR2245108A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2439491A1 (en) * 1978-10-18 1980-05-16 Instruments Sa IMPROVEMENT WITH A DYE LASER
EP0051512A1 (en) * 1980-10-23 1982-05-12 Commissariat à l'Energie Atomique Multiple-wavelength laser using a rotating apertured wheel
DE3508707A1 (en) * 1985-03-12 1986-09-18 Battelle-Institut E.V., 6000 Frankfurt ARRANGEMENT FOR FAST SWITCHING BETWEEN DIFFERENT WAVELENGTHS WITH LASERS
US4862468A (en) * 1987-04-27 1989-08-29 Hughes Aircraft Company Rapidly switchable line selector for pulsed lasers
EP0568738A1 (en) * 1992-05-08 1993-11-10 ELIGHT LASER SYSTEMS GmbH Laser oscillator

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2439491A1 (en) * 1978-10-18 1980-05-16 Instruments Sa IMPROVEMENT WITH A DYE LASER
EP0051512A1 (en) * 1980-10-23 1982-05-12 Commissariat à l'Energie Atomique Multiple-wavelength laser using a rotating apertured wheel
DE3508707A1 (en) * 1985-03-12 1986-09-18 Battelle-Institut E.V., 6000 Frankfurt ARRANGEMENT FOR FAST SWITCHING BETWEEN DIFFERENT WAVELENGTHS WITH LASERS
WO1986005631A1 (en) * 1985-03-12 1986-09-25 Battelle - Institut E.V. Arrangement for fast switching between different wavelengths in lasers
US4823351A (en) * 1985-03-12 1989-04-18 Battelle-Institut E.V. Device for fast switching between different wavelengths of lasers
US4862468A (en) * 1987-04-27 1989-08-29 Hughes Aircraft Company Rapidly switchable line selector for pulsed lasers
EP0568738A1 (en) * 1992-05-08 1993-11-10 ELIGHT LASER SYSTEMS GmbH Laser oscillator

Also Published As

Publication number Publication date
FR2245108B1 (en) 1976-06-18

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Legal Events

Date Code Title Description
ST Notification of lapse