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Title: Ytterbium-doped borate fluoride laser crystals and lasers

A new class of solid state laser crystals and lasers are formed from Yb-doped borate fluoride host crystals. The general formula for the host crystals is MM'(BO.sub.3)F, where M, M' are monovalent, divalent aria trivalent metal cations. A particular embodiment of the invention is Yb-doped BaCaBO.sub.3 F (Yb:BCBF). BCBF and some of the related derivative crystals are capable of nonlinear frequency conversion, whereby the fundamental of the laser is converted to a longer or shorter wavelength. In this way, these new crystals can simultaneously serve as self-frequency doubling crystals and laser materials within the laser resonator.
 [1];  [2];  [3];  [4]
  1. (Pleasanton, CA)
  2. (Manteca, CA)
  3. (Castro Valley, CA)
  4. (Corvallis, OK)
Issue Date:
OSTI Identifier:
Regents of University of California (Oakland, CA) LLNL
Patent Number(s):
US 5677921
Contract Number:
Research Org:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Country of Publication:
United States
ytterbium-doped; borate; fluoride; laser; crystals; lasers; solid; formed; yb-doped; host; formula; monovalent; divalent; aria; trivalent; metal; cations; particular; embodiment; bacabo; bcbf; related; derivative; capable; nonlinear; frequency; conversion; whereby; fundamental; converted; shorter; wavelength; simultaneously; serve; self-frequency; doubling; materials; resonator; trivalent metal; frequency conversion; laser resonator; particular embodiment; metal cations; shorter wavelength; laser material; host crystals; laser crystals; metal cation; nonlinear frequency; frequency doubling; host crystal; borate fluoride; doubling crystals; laser crystal; /372/