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Title: Cr.sup.3+ -doped colquiriite solid state laser material

Abstract

Chromium doped colquiriite, LiCaAlF.sub.6 :Cr.sup.3+, is useful as a tunable laser crystal that has a high intrinsic slope efficiency, comparable to or exceeding that of alexandrite, the current leading performer of vibronic sideband Cr.sup.3+ lasers. The laser output is tunable from at least 720 nm to 840 nm with a measured slop efficiency of about 60% in a Kr laser pumped laser configuration. The intrinsic slope efficiency (in the limit of large output coupling) may approach the quantum defect limited value of 83%. The high slope efficiency implies that excited state absorption (ESA) is negligible. The potential for efficiency and the tuning range of this material satisfy the requirements for a pump laser for a high density storage medium incorporating Nd.sup.3+ or Tm.sup.3+ for use in a multimegajoule single shot fusion research facility.

Inventors:
 [1];  [2];  [2];  [3]
  1. (Castro Valley, CA)
  2. (Livermore, CA)
  3. (Pleasanton, CA)
Issue Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
OSTI Identifier:
866869
Patent Number(s):
4811349
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:
-doped; colquiriite; solid; laser; material; chromium; doped; licaalf; useful; tunable; crystal; intrinsic; slope; efficiency; comparable; exceeding; alexandrite; current; leading; performer; vibronic; sideband; lasers; output; 720; nm; 840; measured; slop; 60; kr; pumped; configuration; limit; coupling; approach; quantum; defect; limited; value; 83; implies; excited; absorption; esa; negligible; potential; tuning; range; satisfy; requirements; pump; density; storage; medium; incorporating; tm; multimegajoule; single; shot; fusion; facility; pump laser; laser output; storage medium; pumped laser; current lead; laser material; tunable laser; laser pump; slope efficiency; output coupling; single shot; chromium doped; laser crystal; laser pumped; /372/

Citation Formats

Payne, Stephen A., Chase, Lloyd L., Newkirk, Herbert W., and Krupke, William F. Cr.sup.3+ -doped colquiriite solid state laser material. United States: N. p., 1989. Web.
Payne, Stephen A., Chase, Lloyd L., Newkirk, Herbert W., & Krupke, William F. Cr.sup.3+ -doped colquiriite solid state laser material. United States.
Payne, Stephen A., Chase, Lloyd L., Newkirk, Herbert W., and Krupke, William F. Sun . "Cr.sup.3+ -doped colquiriite solid state laser material". United States. https://www.osti.gov/servlets/purl/866869.
@article{osti_866869,
title = {Cr.sup.3+ -doped colquiriite solid state laser material},
author = {Payne, Stephen A. and Chase, Lloyd L. and Newkirk, Herbert W. and Krupke, William F.},
abstractNote = {Chromium doped colquiriite, LiCaAlF.sub.6 :Cr.sup.3+, is useful as a tunable laser crystal that has a high intrinsic slope efficiency, comparable to or exceeding that of alexandrite, the current leading performer of vibronic sideband Cr.sup.3+ lasers. The laser output is tunable from at least 720 nm to 840 nm with a measured slop efficiency of about 60% in a Kr laser pumped laser configuration. The intrinsic slope efficiency (in the limit of large output coupling) may approach the quantum defect limited value of 83%. The high slope efficiency implies that excited state absorption (ESA) is negligible. The potential for efficiency and the tuning range of this material satisfy the requirements for a pump laser for a high density storage medium incorporating Nd.sup.3+ or Tm.sup.3+ for use in a multimegajoule single shot fusion research facility.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1989},
month = {1}
}

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