Optical wavelength conversion device, coherent light generator, and optical information processing apparatus

摘要

An optical wavelength conversion device includes: two or more non-linear optical crystals each having approximately identical phase matching conditions for a fundamental wave light and a second harmonic wave light; and a phase adjusting section inserted between the adjacent non-linear optical crystals, wherein the phase adjusting section a dispersion characteristic which is different from that of the non-linear optical crystals, and the phase adjusting section is formed so as to allow at least one of a refractive index or a length thereof to be modulated.