Secondary harmonic generator having waveguides for a laser beam

Details Secondary harmonic generator having waveguides for a laser beam Secondary harmonic generator having waveguides for a laser beam

1989-10-10

1990-11-27

Lee, John D.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307430, 350 9629, G02F 137

Patent

active

049731173

ABSTRACT:
An optical wavelength conversion device, which is provided with a rigid type waveguide for efficiently converting a fundamental wave into the secondary harmonic wave and emitting the latter in the form of a beam of a circular or elliptic shape in section, and a process for manufacturing the ridge type waveguide. The optical wavelength conversion deivce essentially includes: an optical waveguide formed on a substrate of a nonlinear optical material so as to generate a secondary harmonic wave by Cerenkov radiation, and which has a first waveguide passage for confining a fundamental wave and converting it into the secondary harmonic wave, and a second waveguide passage for confining the generated secondary harmonic wave and propagating it toward an end face for emission therefrom.

REFERENCES:
patent: 3660673 (1972-05-01), Anderson
patent: 4427260 (1984-01-01), Puech et al.
patent: 4564997 (1986-01-01), Matsuo et al.
patent: 4763019 (1988-08-01), Duguay et al.
patent: 4874221 (1989-10-01), Ohsawa
Tien et al., "Optical Second Harmonic Generation . . . from a Thin-Film Waveguide", Appl. Phys. Lett., vol. 17, No. 10, pp. 447-450.
Chen et al., "CW Harmonic Generation . . . Using a Thin-Film Waveguide . . . ", Appl. Phys. Lett., vol. 25, No. 9, Nov. 1974, pp. 495-498.
Ito et al., "Phase-Matched Guided, Optical Second-Harmonic Generation . . . ", Optics Commun., vol. 15, No. 1, Sep. 1975, pp. 104-107.

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