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Title: AlGaAs diode pumped tunable chromium lasers

Abstract

An all-solid-state laser system is disclosed wherein the laser is pumped in the longwave wing of the pump absorption band. By utilizing a laser material that will accept unusually high dopant concentrations without deleterious effects on the crystal lattice one is able to compensate for the decreased cross section in the wing of the absorption band, and the number of pump sources which can be used with such a material increases correspondingly. In a particular embodiment a chromium doped colquiriite-structure crystal such as Cr:LiSrAlF.sub.6 is the laser material. The invention avoids the problems associated with using AlGaInP diodes by doping the Cr:LiSrAlF.sub.6 heavily to enable efficient pumping in the longwave wing of the absorption band with more practical AlGaAs diodes.

Inventors:
 [1];  [2]
  1. Pleasanton, CA
  2. Castro Valley, CA
Issue Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
OSTI Identifier:
868247
Patent Number(s):
5105434
Assignee:
United States of America as represented by United States (Washington, DC)
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
algaas; diode; pumped; tunable; chromium; lasers; all-solid-state; laser; disclosed; longwave; pump; absorption; band; utilizing; material; accept; unusually; dopant; concentrations; deleterious; effects; crystal; lattice; compensate; decreased; section; sources; increases; correspondingly; particular; embodiment; doped; colquiriite-structure; lisralf; avoids; associated; algainp; diodes; doping; heavily; enable; efficient; pumping; practical; absorption band; particular embodiment; pump sources; crystal lattice; laser material; deleterious effects; material increases; pump source; chromium doped; deleterious effect; dopant concentrations; diode pump; /372/

Citation Formats

Krupke, William F, and Payne, Stephen A. AlGaAs diode pumped tunable chromium lasers. United States: N. p., 1992. Web.
Krupke, William F, & Payne, Stephen A. AlGaAs diode pumped tunable chromium lasers. United States.
Krupke, William F, and Payne, Stephen A. Wed . "AlGaAs diode pumped tunable chromium lasers". United States. https://www.osti.gov/servlets/purl/868247.
@article{osti_868247,
title = {AlGaAs diode pumped tunable chromium lasers},
author = {Krupke, William F and Payne, Stephen A},
abstractNote = {An all-solid-state laser system is disclosed wherein the laser is pumped in the longwave wing of the pump absorption band. By utilizing a laser material that will accept unusually high dopant concentrations without deleterious effects on the crystal lattice one is able to compensate for the decreased cross section in the wing of the absorption band, and the number of pump sources which can be used with such a material increases correspondingly. In a particular embodiment a chromium doped colquiriite-structure crystal such as Cr:LiSrAlF.sub.6 is the laser material. The invention avoids the problems associated with using AlGaInP diodes by doping the Cr:LiSrAlF.sub.6 heavily to enable efficient pumping in the longwave wing of the absorption band with more practical AlGaAs diodes.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1992},
month = {1}
}

Patent:

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