CGA optical parametric oscillator
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United States of America Patent
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Mar 18, 2003
Grant Date -
N/A
app pub date -
May 10, 2000
filing date -
Feb 2, 2000
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Expired
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Abstract
An optical parametric oscillator and a laser system including an optical parametric oscillator is provided for producing widely tunable coherent light over about 6 .mu.m, such as in the range of at least about 7 .mu.m to 18 .mu.m range. Optical parametric oscillators in accordance with the invention advantageously include CdGeAs.sub.2 (CGA) crystals. Such crystals, in accordance with the invention can exhibit exceptionally small (<0.1 cm.sup.-1) losses in intensity. Laser systems in accordance with the invention can include frequency-doubled CO.sub.2 lasers as the pump beam and frequency doublers or changers, based on CGA crystals.
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