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 Laboratory (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 = {Tue Dec 21 00:00:00 EST 2004},
month = {Tue Dec 21 00:00:00 EST 2004}
}