Patent ID: 7995267
Filing Date: 2011-08-09
Classification: G02F

Abstract:
1. A method of manufacturing a wavelength converter that has an optical waveguide and that converts the wavelength of an incoming beam input into the optical waveguide through one end thereof, and outputs an outgoing beam from the optical waveguide through the other end thereof, the wavelength converter manufacturing method comprising: a step of growing a crystal composed of Al a step of forming a first crystal and a second crystal by sectioning said crystal into two or more in such a way that the domains are the reverse of each other; and a step of interlocking the first and second crystals in such a way that a domain inversion structure in which the polar directions of the first and second crystals periodically reverse along the optical waveguide is formed, and the domain inversion structure satisfies quasi-phase-matching conditions for the incoming beam.