Optical wavelength converting apparatus

Details Optical wavelength converting apparatus Optical wavelength converting apparatus

1995-04-06

1996-12-24

Davie, James W.

Coherent light generators

Particular beam control device

Nonlinear device

372 20, 372 21, 372105, H01S 310

Patent

active

055880142

ABSTRACT:
In an optical wavelength converting apparatus, a fundamental wave impinges upon a crystal of a nonlinear optical material, the type II of phase matching between the fundamental wave and its second harmonic is effected, and the second harmonic of the fundamental wave is thereby radiated out of the optical wavelength converting apparatus. Two crystals constituted of the same material are employed as the crystal. The two crystals have equal lengths and are located in orientations such that corresponding optic axes may be shifted 90.degree. from each other. The optical wavelength converting apparatus yields the second harmonic having the maximum possible output power and yet can be kept small in size and low in cost.

REFERENCES:
patent: 5047668 (1991-09-01), Bosenberg
patent: 5072451 (1991-12-01), Okazaki et al.
patent: 5117126 (1992-05-01), Geiger
patent: 5206867 (1993-04-01), Esterowitz et al.
patent: 5355246 (1994-10-01), Tanuma

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