Optical wavelength converting apparatus

Details Optical wavelength converting apparatus Optical wavelength converting apparatus

1992-02-28

1994-05-24

Davie, James W.

Optical: systems and elements

Optical frequency converter

Harmonic generator

372 21, 372 22, 372 75, 372102, G02F 137

Patent

active

053154339

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: 5117126 (1992-05-01), Geiger

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