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GB1166922A - Method and device for producing high-power light pulses of short duration - Google Patents

Method and device for producing high-power light pulses of short duration

Info

Publication number
GB1166922A
GB1166922A GB1170967A GB1170967A GB1166922A GB 1166922 A GB1166922 A GB 1166922A GB 1170967 A GB1170967 A GB 1170967A GB 1170967 A GB1170967 A GB 1170967A GB 1166922 A GB1166922 A GB 1166922A
Authority
GB
United Kingdom
Prior art keywords
cavity
modulator
wave packet
reflector
prism
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
GB1170967A
Inventor
Gilbert Dauge
Maurice Michon
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
Publication of GB1166922A publication Critical patent/GB1166922A/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
    • H01S3/11—Mode locking; Q-switching; Other giant-pulse techniques, e.g. cavity dumping
    • H01S3/1123—Q-switching
    • H01S3/115—Q-switching using intracavity electro-optic devices
    • 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
    • H01S3/107—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 electro-optic devices, e.g. exhibiting Pockels or Kerr effect

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Optics & Photonics (AREA)
  • Lasers (AREA)

Abstract

1,166,922. Lasers. COMMISSARIAT A L'ENERGIE ATOMIQUE. 13 March, 1967 [25 March, 1966], No. 11709/67. Heading H1C. Coherent light generated in a laser resonant cavity is concentrated into a wave packet having a length which is less than the length of the cavity and is then extracted from the cavity. The active medium 9 is initially pumped while cavity reflector 2 is non-parallel to reflector 13. With the reflectors parallel, electro-optical modulator M, consisting of a Pockels cell 12 and a Glan prism 10, is energized with A.C. so that its instant of maximum transmission recurs with a period equal to the time taken for light to travel from the modulator to reflector 2 and back to the modulator. As a result photons emitted from the active medium tend to concentrate in a wave packet which is transmitted by the modulator at the instant of maximum transmission. When this wave packet has formed a D.C. voltage is applied to electrooptical switch C, also consisting of a Pockels cell and Glan prism, to deflect the wave packet out of the cavity. In a second embodiment the modulator and switch are combined in a single unit and in a third embodiment this unit also performs the same function as the rotating prism 2, the cavity being initially give a low Q by applying a D.C. voltage to the electro-optical cell. The prism is in this embodiment replaced by a plane mirror.
GB1170967A 1966-03-25 1967-03-13 Method and device for producing high-power light pulses of short duration Expired GB1166922A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR55098A FR1492057A (en) 1966-03-25 1966-03-25 High power short light pulse generator

Publications (1)

Publication Number Publication Date
GB1166922A true GB1166922A (en) 1969-10-15

Family

ID=8604754

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1170967A Expired GB1166922A (en) 1966-03-25 1967-03-13 Method and device for producing high-power light pulses of short duration

Country Status (9)

Country Link
BE (1) BE694983A (en)
BR (1) BR6787925D0 (en)
CH (1) CH471479A (en)
DE (1) DE1589588A1 (en)
ES (1) ES338348A1 (en)
FR (1) FR1492057A (en)
GB (1) GB1166922A (en)
LU (1) LU53240A1 (en)
NL (1) NL6703360A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11291372B2 (en) 2016-03-30 2022-04-05 Fujifilm Corporation Laser device and photoacoustic measurement apparatus
US11324402B2 (en) 2016-03-30 2022-05-10 Fujifilm Corporation Laser device and photoacoustic measurement apparatus

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2085285B1 (en) * 1970-04-06 1973-10-19 Comp Generale Electricite
FR2105033A2 (en) * 1970-09-17 1972-04-28 Comp Generale Electricite Triggered laser - with three nanosecond pulses

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11291372B2 (en) 2016-03-30 2022-04-05 Fujifilm Corporation Laser device and photoacoustic measurement apparatus
US11324402B2 (en) 2016-03-30 2022-05-10 Fujifilm Corporation Laser device and photoacoustic measurement apparatus

Also Published As

Publication number Publication date
DE1589588A1 (en) 1970-05-21
NL6703360A (en) 1967-09-26
ES338348A1 (en) 1969-06-01
BR6787925D0 (en) 1973-01-11
LU53240A1 (en) 1967-05-22
FR1492057A (en) 1967-08-18
BE694983A (en) 1967-08-14
CH471479A (en) 1969-04-15

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Legal Events

Date Code Title Description
PS Patent sealed
PE Patent expired