JPS57139979A - Pulse laser device with stabilised output - Google Patents

Pulse laser device with stabilised output

Info

Publication number
JPS57139979A
JPS57139979A JP2582181A JP2582181A JPS57139979A JP S57139979 A JPS57139979 A JP S57139979A JP 2582181 A JP2582181 A JP 2582181A JP 2582181 A JP2582181 A JP 2582181A JP S57139979 A JPS57139979 A JP S57139979A
Authority
JP
Japan
Prior art keywords
modulator
pulse
output
pulse laser
detector
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.)
Pending
Application number
JP2582181A
Other languages
Japanese (ja)
Inventor
Koichiro Toshima
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co Ltd
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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP2582181A priority Critical patent/JPS57139979A/en
Publication of JPS57139979A publication Critical patent/JPS57139979A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/0121—Operation of devices; Circuit arrangements, not otherwise provided for in this subclass

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lasers (AREA)

Abstract

PURPOSE:To stabilize the output of a laser in a pulse oscillation at each shot by utilizing an optical fiber. CONSTITUTION:An optical pulse outputted from a pulse laser oscillation device 1 is divided into two beams 12, 13 with a beam splitter 2. A beam 13 passes through an optical fiber and reaches to a modulator 4 with a time delay. On the other hand a beam 12 is used as an input signal of a detector 5 and an output signal from the detector 5 is amplified by an electric circuit 6, and matching into a suitable electric signal for the modulator is done, and from a moment immediately before a pulse light 14 reaches to the modulator 4 at least, to a moment after the pulse light has just passed through the modulator 4 at least, the modulator is made active. By an electric circuit being adjusted so that a modulation factor of the modulator 4 may be proportional to an intensity of the beam 12, an output beam 15 is maintained constant in its intensity.
JP2582181A 1981-02-24 1981-02-24 Pulse laser device with stabilised output Pending JPS57139979A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2582181A JPS57139979A (en) 1981-02-24 1981-02-24 Pulse laser device with stabilised output

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2582181A JPS57139979A (en) 1981-02-24 1981-02-24 Pulse laser device with stabilised output

Publications (1)

Publication Number Publication Date
JPS57139979A true JPS57139979A (en) 1982-08-30

Family

ID=12176517

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2582181A Pending JPS57139979A (en) 1981-02-24 1981-02-24 Pulse laser device with stabilised output

Country Status (1)

Country Link
JP (1) JPS57139979A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4847477A (en) * 1986-01-28 1989-07-11 British Telecommunications Public Limited Company Reducing phase fluctuations in a coherent radiation beam using feedforward control

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4847477A (en) * 1986-01-28 1989-07-11 British Telecommunications Public Limited Company Reducing phase fluctuations in a coherent radiation beam using feedforward control

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