Wavelength conversion laser apparatus

Details Wavelength conversion laser apparatus Wavelength conversion laser apparatus

2007-06-13

2008-10-28

Rodriguez, Armando (Department: 2828)

Coherent light generators

Particular beam control device

Nonlinear device

C372S022000

Reexamination Certificate

active

07443892

ABSTRACT:
In a wavelength conversion laser device, a laser light source emits first wavelength light. A non-linear optical crystal converts the first wavelength light into second wavelength light. A rotational driver rotates the non-linear optical crystal so as to alter an incidence angle of the first wavelength light with respect to the non-linear optical crystal. A rotational driving controller detects a portion of an output of the second wavelength light, generates a rotational control signal of the non-linear optical crystal in accordance with a change in the output, and transmits the rotational control signal to the rotational driver. A beam location maintaining mirror retroreflects the second wavelength light, outputted from the non-linear optical crystal, along a substantially same path as that of the first wavelength light. Also, an output beam distributor guides the retroreflected second wavelength light in a desired output direction.

REFERENCES:
patent: 6590915 (2003-07-01), Kitaoka et al.
patent: 6614584 (2003-09-01), Govorkov et al.
patent: 7-313396 (1995-11-01), None
patent: 2003-174222 (2003-06-01), None

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