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Title: Post pulse shutter for laser amplifier

Abstract

Disclosed are an apparatus and method for quickly closing off the return path for an amplified laser pulse at the output of an amplifier so as to prevent damage to amplifiers and other optical components appearing earlier in the chain by the return of an amplified pulse. The apparatus consists of a fast retropulse or post pulse shutter to suppress target reflection and/or beam return. This is accomplished by either quickly placing a solid across the light transmitting aperture of a component in the chain, such as a spatial filter pinhole, or generating and directing a plasma with sufficiently high density across the aperture, so as to, in effect, close the aperture to the returning amplified energy pulse. 13 figs.

Inventors:
; ;
Issue Date:
OSTI Identifier:
7146525
Patent Number(s):
4257017 A
Application Number:
PPN: US 5-923753
Assignee:
Dept. of Energy, Washington, DC (United States) PTO; EDB-94-125357
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Resource Relation:
Patent File Date: 11 Jul 1978
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; LASERS; SHUTTERS; AMPLIFIERS; EQUIPMENT PROTECTION DEVICES; LASER RADIATION; OPTICAL EQUIPMENT; ELECTROMAGNETIC RADIATION; ELECTRONIC EQUIPMENT; EQUIPMENT; RADIATIONS; 426002* - Engineering- Lasers & Masers- (1990-)

Citation Formats

Bradley, L.P., Carder, B.M., and Gagnon, W.L. Post pulse shutter for laser amplifier. United States: N. p., 1981. Web.
Bradley, L.P., Carder, B.M., & Gagnon, W.L. Post pulse shutter for laser amplifier. United States.
Bradley, L.P., Carder, B.M., and Gagnon, W.L. Tue . "Post pulse shutter for laser amplifier". United States.
@article{osti_7146525,
title = {Post pulse shutter for laser amplifier},
author = {Bradley, L.P. and Carder, B.M. and Gagnon, W.L.},
abstractNote = {Disclosed are an apparatus and method for quickly closing off the return path for an amplified laser pulse at the output of an amplifier so as to prevent damage to amplifiers and other optical components appearing earlier in the chain by the return of an amplified pulse. The apparatus consists of a fast retropulse or post pulse shutter to suppress target reflection and/or beam return. This is accomplished by either quickly placing a solid across the light transmitting aperture of a component in the chain, such as a spatial filter pinhole, or generating and directing a plasma with sufficiently high density across the aperture, so as to, in effect, close the aperture to the returning amplified energy pulse. 13 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1981},
month = {3}
}