ES338348A1 - 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
ES338348A1
ES338348A1 ES338348A ES338348A ES338348A1 ES 338348 A1 ES338348 A1 ES 338348A1 ES 338348 A ES338348 A ES 338348A ES 338348 A ES338348 A ES 338348A ES 338348 A1 ES338348 A1 ES 338348A1
Authority
ES
Spain
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
ES338348A
Other languages
Spanish (es)
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 ES338348A1 publication Critical patent/ES338348A1/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

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.
ES338348A 1966-03-25 1967-03-22 Method and device for producing high-power light pulses of short duration Expired ES338348A1 (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
ES338348A1 true ES338348A1 (en) 1969-06-01

Family

ID=8604754

Family Applications (1)

Application Number Title Priority Date Filing Date
ES338348A Expired ES338348A1 (en) 1966-03-25 1967-03-22 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)

Families Citing this family (4)

* 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
CN108886231B (en) 2016-03-30 2020-06-19 富士胶片株式会社 Laser device and photoacoustic measurement device
JP6595702B2 (en) 2016-03-30 2019-10-23 富士フイルム株式会社 Laser apparatus and photoacoustic measuring apparatus

Also Published As

Publication number Publication date
BE694983A (en) 1967-08-14
GB1166922A (en) 1969-10-15
CH471479A (en) 1969-04-15
DE1589588A1 (en) 1970-05-21
BR6787925D0 (en) 1973-01-11
LU53240A1 (en) 1967-05-22
FR1492057A (en) 1967-08-18
NL6703360A (en) 1967-09-26

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