Laser light source

Details Laser light source Laser light source

2007-08-15

2009-08-11

Harvey, Minsun (Department: 2828)

Coherent light generators

Particular beam control device

Nonlinear device

C372S020000, C372S023000

Reexamination Certificate

active

07573921

ABSTRACT:
A laser light source is disclosed consisting of first and second lasers that respectively generate laser beams of wavelengths λ1and λ2. Wavelength λ1is in the range of 0.9-1.0 μm. A nonlinear optical crystal uses the laser beams of wavelengths λ1and λ2as inputs, and outputs a coherent beam having a wavelength λ3of a difference frequency that satisfies a relationship of 1/λ1−1/λ2=1/λ3. The nonlinear optical crystal has a periodically poled structure of a single period. The wavelength λ3of the difference frequency varies between 3.1 μm and 2.0 μm when the wavelength λ2varies between 1.3 μm and 1.8 μm.

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