Optical wavelength converting method

Details Optical wavelength converting method Optical wavelength converting method

1990-09-20

1992-01-14

Lee, John D.

Optical waveguides

Having nonlinear property

385123, 385143, 359328, 359332, G02F 137

Patent

active

050805070

ABSTRACT:
A fundamental wave is caused to enter a Cerenkov-radiation type optical wavelength converter device which is formed of a single-crystal organic nonlinear optical material of an orthorhombic system of mm2 point group disposed in a cladding as a waveguide and a wavelength-converted wave such as a second harmonic whose wavelength within the range of 430 to 500 nm is extracted. The wavelength of the fundamental wave is selected so that the wavelength of the wavelength-converted wave becomes longer than the absorption edge of the organic nonlinear optical material by at least 30 nm. The fundamental wave is linearly polarized in the direction of the x-optic-axis or the y-optic-axis of the crystal of the organic nonlinear optical material and then caused to enter the optical wavelength converter device, and a wavelength-converted wave which is linearly polarized in the z-optic-axis of the crystal is extracted.

REFERENCES:
patent: 3679907 (1972-07-01), Bonner et al.
patent: 4826283 (1989-05-01), Chuangtian et al.
patent: 4893888 (1990-01-01), Okazaki et al.
patent: 4909595 (1990-03-01), Okazaki et al.
patent: 4909596 (1990-03-01), Okazaki et al.
patent: 4981613 (1991-01-01), Okazaki et al.

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