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Title: Edge-facet pumped, multi-aperture, thin-disk laser geometry for very high average power output scaling

Abstract

The average power output of a laser is scaled, to first order, by increasing the transverse dimension of the gain medium while increasing the thickness of an index matched light guide proportionately. Strategic facets cut at the edges of the laminated gain medium provide a method by which the pump light introduced through edges of the composite structure is trapped and passes through the gain medium repeatedly. Spontaneous emission escapes the laser volume via these facets. A multi-faceted disk geometry with grooves cut into the thickness of the gain medium is optimized to passively reject spontaneous emission generated within the laser material, which would otherwise be trapped and amplified within the high index composite disk. Such geometry allows the useful size of the laser aperture to be increased, enabling the average laser output power to be scaled.

Inventors:
Issue Date:
Research Org.:
Univ. of California, Oakland, CA (United States); Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1175180
Patent Number(s):
6834070
Application Number:
09/771,387
Assignee:
The Regents of the University of California (Oakland, CA)
Patent Classifications (CPCs):
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:  
W-7405-ENG-48
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION

Citation Formats

Zapata, Luis E. Edge-facet pumped, multi-aperture, thin-disk laser geometry for very high average power output scaling. United States: N. p., 2004. Web.
Zapata, Luis E. Edge-facet pumped, multi-aperture, thin-disk laser geometry for very high average power output scaling. United States.
Zapata, Luis E. Tue . "Edge-facet pumped, multi-aperture, thin-disk laser geometry for very high average power output scaling". United States. https://www.osti.gov/servlets/purl/1175180.
@article{osti_1175180,
title = {Edge-facet pumped, multi-aperture, thin-disk laser geometry for very high average power output scaling},
author = {Zapata, Luis E.},
abstractNote = {The average power output of a laser is scaled, to first order, by increasing the transverse dimension of the gain medium while increasing the thickness of an index matched light guide proportionately. Strategic facets cut at the edges of the laminated gain medium provide a method by which the pump light introduced through edges of the composite structure is trapped and passes through the gain medium repeatedly. Spontaneous emission escapes the laser volume via these facets. A multi-faceted disk geometry with grooves cut into the thickness of the gain medium is optimized to passively reject spontaneous emission generated within the laser material, which would otherwise be trapped and amplified within the high index composite disk. Such geometry allows the useful size of the laser aperture to be increased, enabling the average laser output power to be scaled.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2004},
month = {12}
}

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