Semiconductor Diode Pumped Laser Using Heating-Only Power Stabilization
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United States of America Patent
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Issued Date -
Mar 4, 2010
app pub date -
Oct 17, 2007
filing date -
Oct 31, 2006
priority date (Note) -
Abandoned
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Abstract
A laser system such as a DPSS green laser uses a laser diode pump source that is specially selected so that the wavelength of diode source is centered around the optimal source wavelength, typically 808 nm, which produces the optimal green laser output from the system. Unlike prior systems in which the source wavelength is at 808 nm at typical ambient temperature of about 25° C., in the system disclosed, the source wavelength is at 808 nm at a temperature significantly higher than ambient, which may be as high as about 40° C. In this system optimum performance can be established and maintained in a broad temperature range such as 0˜50° C. using only a heating element adjacent to the diode laser pump source. No cooling is required. Cost, size, and power requirements of the system are therefore minimized.
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