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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 chromium 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:
Issue Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
OSTI Identifier:
7011515
Patent Number(s):
6110387
Assignee:
LLNL; ERA-14-001279; EDB-88-185692
Patent Classifications (CPCs):
A - HUMAN NECESSITIES A01 - AGRICULTURE A01N - PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF
C - CHEMISTRY C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE C02F - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Resource Relation:
Other Information: Portions of this document are illegible in microfiche products
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; LASER MATERIALS; DESIGN; CHROMIUM; DOPED MATERIALS; INVENTIONS; LASER POWER TRANSMISSION; NEODYMIUM; SOLID STATE LASERS; ELEMENTS; LASERS; MATERIALS; METALS; POWER TRANSMISSION; RARE EARTHS; TRANSITION ELEMENTS; 420300* - Engineering- Lasers- (-1989)

Citation Formats

Stokowski, S E. Synthetic laser medium. United States: N. p., 1987. Web.
Stokowski, S E. Synthetic laser medium. United States.
Stokowski, S E. Tue . "Synthetic laser medium". United States.
@article{osti_7011515,
title = {Synthetic laser medium},
author = {Stokowski, S E},
abstractNote = {A laser medium is particularly useful in high average power solid state lasers. The laser medium includes a chromium 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 = {1987},
month = {10}
}