GB1279300A - Self synchronized laser apparatus - Google Patents

Self synchronized laser apparatus

Info

Publication number
GB1279300A
GB1279300A GB3434669A GB3434669A GB1279300A GB 1279300 A GB1279300 A GB 1279300A GB 3434669 A GB3434669 A GB 3434669A GB 3434669 A GB3434669 A GB 3434669A GB 1279300 A GB1279300 A GB 1279300A
Authority
GB
United Kingdom
Prior art keywords
radiation
cell
resonator
active medium
delay
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
GB3434669A
Inventor
Ronald Phillip Hilberg
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.)
Northrop Grumman Space and Mission Systems Corp
Original Assignee
TRW Inc
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 TRW Inc filed Critical TRW Inc
Priority to GB3434669A priority Critical patent/GB1279300A/en
Publication of GB1279300A publication Critical patent/GB1279300A/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
    • H01S3/11—Mode locking; Q-switching; Other giant-pulse techniques, e.g. cavity dumping
    • H01S3/1123—Q-switching
    • H01S3/1127—Q-switching using pulse transmission mode [PTM]

Landscapes

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

Abstract

1279300 Lasers TRW Inc 8 July 1969 34346/69 Heading H1C The resonator of a Q-switched laser includes a plane polarizing Glan prism 18 positioned between a normally biased Kerr cell 20 and an unbiased Pockel's cell 22. When the laser active medium 28, e.g. a neodymium-doped YAG rod, is flash pumped by a lamp 30 energized from a trigger generator 38, the polarization rotation produced by the Kerr cell causes radiation from the active medium to be initially deflected by the prism towards an absorber 34. After a delay imposed by a delay circuit 42, the Kerr cell bias is removed by a modulator 44 and the radiation is able to oscillate between the resonator mirrors 14, 16. The radiation peak is detected by a photodiode 46 aligned with mirror 14, and after a further delay produced by a delay line 50, the Pockel's cell is biased and restores polarization rotation. Output radiation 36 is then deflected by the prism out of the resonator. The active medium and flash lamp are housed in an aluminium casing 32.
GB3434669A 1969-07-08 1969-07-08 Self synchronized laser apparatus Expired GB1279300A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3434669A GB1279300A (en) 1969-07-08 1969-07-08 Self synchronized laser apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3434669A GB1279300A (en) 1969-07-08 1969-07-08 Self synchronized laser apparatus

Publications (1)

Publication Number Publication Date
GB1279300A true GB1279300A (en) 1972-06-28

Family

ID=10364508

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3434669A Expired GB1279300A (en) 1969-07-08 1969-07-08 Self synchronized laser apparatus

Country Status (1)

Country Link
GB (1) GB1279300A (en)

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees