Modulators – Amplitude modulator – Nonlinear device controlled by modulating signal
Patent
1978-07-11
1981-03-17
Moskowitz, Nelson
Modulators
Amplitude modulator
Nonlinear device controlled by modulating signal
330 43, 350266, 350363, H01S 310, G02B 523
Patent
active
042570174
ABSTRACT:
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.
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Bradley Laird P.
Carder Bruce M.
Gagnon William L.
Carnahan L. E.
Denny James E.
Gaither Roger S.
Moskowitz Nelson
The United States of America as represented by the United States
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