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Title: Multipass laser amplification with near-field far-field optical separation

Abstract

This invention discloses two classes of optical configurations for high power laser amplification, one allowing near-field and the other allowing far-field optical separation, for the multiple passage of laser pulses through one or more amplifiers over an open optical path. These configurations may reimage the amplifier or any other part of the cavity on itself so as to suppress laser beam intensity ripples that arise from diffraction and/or non-linear effects. The optical cavities combine the features of multiple passes, spatial filtering and optical reimaging and allow sufficient time for laser gain recovery.

Inventors:
 [1]
  1. (Livermore, CA)
Issue Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
OSTI Identifier:
863363
Patent Number(s):
4156852
Assignee:
United States of America as represented by United States (Washington, DC) LLNL
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
multipass; laser; amplification; near-field; far-field; optical; separation; discloses; configurations; power; allowing; multiple; passage; pulses; amplifiers; path; reimage; amplifier; cavity; suppress; beam; intensity; ripples; arise; diffraction; non-linear; effects; cavities; combine; features; passes; spatial; filtering; reimaging; allow; sufficient; time; recovery; spatial filter; laser amplification; multiple passes; beam intensity; laser pulses; laser pulse; laser beam; optical path; power laser; sufficient time; optical separation; multiple pass; far-field optical; pass laser; allow sufficient; /359/372/

Citation Formats

Hagen, Wilhelm F. Multipass laser amplification with near-field far-field optical separation. United States: N. p., 1979. Web.
Hagen, Wilhelm F. Multipass laser amplification with near-field far-field optical separation. United States.
Hagen, Wilhelm F. Mon . "Multipass laser amplification with near-field far-field optical separation". United States. https://www.osti.gov/servlets/purl/863363.
@article{osti_863363,
title = {Multipass laser amplification with near-field far-field optical separation},
author = {Hagen, Wilhelm F.},
abstractNote = {This invention discloses two classes of optical configurations for high power laser amplification, one allowing near-field and the other allowing far-field optical separation, for the multiple passage of laser pulses through one or more amplifiers over an open optical path. These configurations may reimage the amplifier or any other part of the cavity on itself so as to suppress laser beam intensity ripples that arise from diffraction and/or non-linear effects. The optical cavities combine the features of multiple passes, spatial filtering and optical reimaging and allow sufficient time for laser gain recovery.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1979},
month = {1}
}

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