JPS56101524A - Monitoring device for laser energy - Google Patents

Monitoring device for laser energy

Info

Publication number
JPS56101524A
JPS56101524A JP393880A JP393880A JPS56101524A JP S56101524 A JPS56101524 A JP S56101524A JP 393880 A JP393880 A JP 393880A JP 393880 A JP393880 A JP 393880A JP S56101524 A JPS56101524 A JP S56101524A
Authority
JP
Japan
Prior art keywords
laser pulse
capacitor
energy
photoelectric converter
monitoring device
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
JP393880A
Other languages
Japanese (ja)
Other versions
JPS6151248B2 (en
Inventor
Kanichi Isobe
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 JP393880A priority Critical patent/JPS56101524A/en
Publication of JPS56101524A publication Critical patent/JPS56101524A/en
Publication of JPS6151248B2 publication Critical patent/JPS6151248B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/42—Photometry, e.g. photographic exposure meter using electric radiation detectors
    • G01J1/4257—Photometry, e.g. photographic exposure meter using electric radiation detectors applied to monitoring the characteristics of a beam, e.g. laser beam, headlamp beam

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
  • Lasers (AREA)

Abstract

PURPOSE:To measure the energy of a laser pulse having a narrow pulse width and a large beam diameter by means of a comparatively simple device by a method wherein a slight part of the laser pulse energy is separated to be diffused and the part of the scattered light is converted into photoelectrons. CONSTITUTION:The part of a laser pulse beam 1 picked up through a beam splitter 2 is scattered into space through a diffusion plate 3 and the part of the scattered light 4 is irradiated into a photoelectric converter 5 such as a PIN diode. The output of the photoelectric converter 5 is integrated by means of an integrator composed of a resistor 7 and a capacitor 8. The voltage charged in the capacitor 8 is detected through a voltage detecting circuit 10.
JP393880A 1980-01-17 1980-01-17 Monitoring device for laser energy Granted JPS56101524A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP393880A JPS56101524A (en) 1980-01-17 1980-01-17 Monitoring device for laser energy

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP393880A JPS56101524A (en) 1980-01-17 1980-01-17 Monitoring device for laser energy

Publications (2)

Publication Number Publication Date
JPS56101524A true JPS56101524A (en) 1981-08-14
JPS6151248B2 JPS6151248B2 (en) 1986-11-07

Family

ID=11571064

Family Applications (1)

Application Number Title Priority Date Filing Date
JP393880A Granted JPS56101524A (en) 1980-01-17 1980-01-17 Monitoring device for laser energy

Country Status (1)

Country Link
JP (1) JPS56101524A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60183834U (en) * 1984-05-16 1985-12-06 長田電機工業株式会社 laser output detector
JPS6269577A (en) * 1985-09-21 1987-03-30 Ushio Inc Output control device of pulse discharge type laser
JPH02107931A (en) * 1988-10-17 1990-04-19 Fuji Electric Co Ltd Optical pulse measuring apparatus
JPH04131961U (en) * 1991-05-28 1992-12-04 日本電気株式会社 Monitor structure in solid-state laser equipment
US9416984B2 (en) 2008-05-26 2016-08-16 Mitsubishi Electric Corporation Ventilator
GB2628146A (en) * 2023-03-16 2024-09-18 Bae Systems Plc Method and apparatus for characterizing an incoming electromagnetic energy beam

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5497082A (en) * 1978-01-17 1979-07-31 Mitsubishi Electric Corp Intensity detector of laser beam

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5497082A (en) * 1978-01-17 1979-07-31 Mitsubishi Electric Corp Intensity detector of laser beam

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60183834U (en) * 1984-05-16 1985-12-06 長田電機工業株式会社 laser output detector
JPS6269577A (en) * 1985-09-21 1987-03-30 Ushio Inc Output control device of pulse discharge type laser
JPH02107931A (en) * 1988-10-17 1990-04-19 Fuji Electric Co Ltd Optical pulse measuring apparatus
JPH04131961U (en) * 1991-05-28 1992-12-04 日本電気株式会社 Monitor structure in solid-state laser equipment
US9416984B2 (en) 2008-05-26 2016-08-16 Mitsubishi Electric Corporation Ventilator
GB2628146A (en) * 2023-03-16 2024-09-18 Bae Systems Plc Method and apparatus for characterizing an incoming electromagnetic energy beam

Also Published As

Publication number Publication date
JPS6151248B2 (en) 1986-11-07

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