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Title: Synthetic laser medium

Abstract

A laser medium is particularly useful in high average power solid state lasers. The laser medium includes a chormium dopant and preferably neodymium ions as codopant, and is primarily a gadolinium scandium gallium garnet, or an analog thereof. Divalent cations inhibit spiral morphology as large boules from which the laser medium is derived are grown, and a source of ions convertible between a trivalent state and a tetravalent state at a low ionization energy are in the laser medium to reduce an absorption coefficient at about one micron wavelength otherwise caused by the divalent cations. These divalent cations and convertible ions are dispersed in the laser medium. Preferred convertible ions are provided from titanium or cerium sources.

Inventors:
 [1]
  1. (Danville, CA)
Issue Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
OSTI Identifier:
866929
Patent Number(s):
4824598
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:
synthetic; laser; medium; particularly; useful; average; power; solid; lasers; chormium; dopant; preferably; neodymium; codopant; primarily; gadolinium; scandium; gallium; garnet; analog; divalent; cations; inhibit; spiral; morphology; boules; derived; grown; source; convertible; trivalent; tetravalent; ionization; energy; reduce; absorption; coefficient; micron; wavelength; otherwise; caused; dispersed; preferred; provided; titanium; cerium; sources; power solid; particularly useful; average power; laser medium; absorption coefficient; otherwise caused; micron wavelength; ionization energy; /252/117/372/

Citation Formats

Stokowski, Stanley E. Synthetic laser medium. United States: N. p., 1989. Web.
Stokowski, Stanley E. Synthetic laser medium. United States.
Stokowski, Stanley E. Sun . "Synthetic laser medium". United States. https://www.osti.gov/servlets/purl/866929.
@article{osti_866929,
title = {Synthetic laser medium},
author = {Stokowski, Stanley E.},
abstractNote = {A laser medium is particularly useful in high average power solid state lasers. The laser medium includes a chormium dopant and preferably neodymium ions as codopant, and is primarily a gadolinium scandium gallium garnet, or an analog thereof. Divalent cations inhibit spiral morphology as large boules from which the laser medium is derived are grown, and a source of ions convertible between a trivalent state and a tetravalent state at a low ionization energy are in the laser medium to reduce an absorption coefficient at about one micron wavelength otherwise caused by the divalent cations. These divalent cations and convertible ions are dispersed in the laser medium. Preferred convertible ions are provided from titanium or cerium sources.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1989},
month = {1}
}

Patent:

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