Low noise, intra-cavity frequency-doubling micro chip laser with wide temperature range
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United States of America Patent
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Dec 30, 2008
Grant Date -
Mar 2, 2006
app pub date -
Aug 27, 2004
filing date -
Aug 27, 2004
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Abstract
A low-noise micro-chip laser includes a diode pump, a gain medium, a nonlinear crystal, and a birefringent material. The gain medium can receive the energy from the diode pump and generate a laser beam at a fundamental wavelength. The nonlinear crystal can generate a frequency-doubled laser beam in response to the laser beam at the fundamental wavelength. To reduce noise in the frequency-doubled laser beam, the birefringent material and the nonlinear crystal in combination are designed to function as a quarter wave plate at the fundamental wavelength.
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