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Title: Spatial filters for high average power lasers

Abstract

A spatial filter includes a first filter element and a second filter element overlapping with the first filter element. The first filter element includes a first pair of cylindrical lenses separated by a first distance. Each of the first pair of cylindrical lenses has a first focal length. The first filter element also includes a first slit filter positioned between the first pair of cylindrical lenses. The second filter element includes a second pair of cylindrical lenses separated by a second distance. Each of the second pair of cylindrical lenses has a second focal length. The second filter element also includes a second slit filter positioned between the second pair of cylindrical lenses.

Inventors:
Issue Date:
Research Org.:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1080283
Patent Number(s):
8320056
Application Number:
12/544,988
Assignee:
Lawrence Livermore National Security, LLC (Livermore, CA)
Patent Classifications (CPCs):
G - PHYSICS G02 - OPTICS G02B - OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01S - DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT
DOE Contract Number:  
AC52-07NA27344
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION

Citation Formats

Erlandson, Alvin C. Spatial filters for high average power lasers. United States: N. p., 2012. Web.
Erlandson, Alvin C. Spatial filters for high average power lasers. United States.
Erlandson, Alvin C. Tue . "Spatial filters for high average power lasers". United States. https://www.osti.gov/servlets/purl/1080283.
@article{osti_1080283,
title = {Spatial filters for high average power lasers},
author = {Erlandson, Alvin C},
abstractNote = {A spatial filter includes a first filter element and a second filter element overlapping with the first filter element. The first filter element includes a first pair of cylindrical lenses separated by a first distance. Each of the first pair of cylindrical lenses has a first focal length. The first filter element also includes a first slit filter positioned between the first pair of cylindrical lenses. The second filter element includes a second pair of cylindrical lenses separated by a second distance. Each of the second pair of cylindrical lenses has a second focal length. The second filter element also includes a second slit filter positioned between the second pair of cylindrical lenses.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Nov 27 00:00:00 EST 2012},
month = {Tue Nov 27 00:00:00 EST 2012}
}

Works referenced in this record:

Laser beam filtering by refractive or diffractive microstructures
conference, August 2005


High-damage-threshold pinhole for glass fusion laser applications
conference, July 1999

  • Kurnit, Norman A.; Letzring, S. A.; Johnson, Randall P.
  • Third International Conference on Solid State Lasers for Application to Inertial Confinement Fusion, SPIE Proceedings
  • https://doi.org/10.1117/12.354211