Optical: systems and elements – Optical frequency converter
Reexamination Certificate
2006-09-26
2006-09-26
Lee, John D. (Department: 2874)
Optical: systems and elements
Optical frequency converter
C359S328000, C359S330000
Reexamination Certificate
active
07113325
ABSTRACT:
A nonlinear optical conversion device includes a nonlinear crystal having entrance and exit surfaces allowing input and output laser beams to propagate in the phase-matching plane for a desired nonlinear generation process. The nonlinear generation process involves a nonlinear interaction in the nonlinear crystal and resultant conversion of power in one or two input beams into power in the output beam. The nonlinear crystal is characterized by absorption and resultant modification of the crystal properties by the power in the output beam, the modification with the potential for reducing the efficiency of the nonlinear process in the crystal, and the nonlinear process involving critical phase-matching in the nonlinear crystal in which the powers in the output beam and input beam or beams propagate in different directions through the process of Poynting vector walk-off. The input beam or beams are of a sufficiently small beam dimension in the phase-matching plane.
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Dergachev Alex
Masada Genta
Moulton Peter F.
Sekine Ichiro
Takahashi Masakuni
Darby & Darby
Lee John D.
Mitsubishi Materials Corporation
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