Wavelength converting element and method of manufacture thereof

Details Wavelength converting element and method of manufacture thereof Wavelength converting element and method of manufacture thereof

2005-07-12

2005-07-12

Lee, John D. (Department: 2874)

Optical: systems and elements

Optical frequency converter

Dielectric optical waveguide type

C430S321000

Reexamination Certificate

active

06917463

ABSTRACT:
A wavelength converting element is provided in which a fundamental wave with respect to an optical crystal substrate and a peak of a vertical transverse mode of a second harmonic are made to coincide, the converting efficiency is good, and a beam shape which enables good joining to a lens or an optical fiber is obtained. Given that an angle formed by a surface of the optical crystal substrate and a C axis of the optical crystal substrate is θ, a period at which inverted domains are formed is p, and a distance from a distal end of a comb-shaped electrode for forming the inverted domain to a central position of a waveguide is G, in the ion implantation, a concentration peak of the ion implantation is formed at a distance of substantially (G·tanθ+p/4) from the surface of the optical crystal substrate.

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