Optical device, laser beam source, laser apparatus and...

Details Optical device, laser beam source, laser apparatus and... Optical device, laser beam source, laser apparatus and...

2007-12-27

2009-08-04

Nguyen, Dung T (Department: 2828)

Coherent light generators

Particular beam control device

Nonlinear device

C372S022000

Reexamination Certificate

active

07570677

ABSTRACT:
After forming domain inverted layers3in an LiTaO3substrate1, an optical waveguide is formed. By performing low-temperature annealing for the optical wavelength conversion element thus formed, a stable proton exchange layer8is formed, where an increase in refractive index generated during high-temperature annealing is lowered, thereby providing a stable optical wavelength conversion element. Thus, the phase-matched wavelength becomes constant, and variation in harmonic wave output is eliminated. Consequently, with respect to an optical wavelength conversion element utilizing a non-linear optical effect, a highly reliable element is provided.

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