Coherent light generators – Particular beam control device – Nonlinear device
Reexamination Certificate
2004-09-29
2008-12-02
Harvey, Minsun (Department: 2828)
Coherent light generators
Particular beam control device
Nonlinear device
C359S328000
Reexamination Certificate
active
07460570
ABSTRACT:
An object of the present invention is to provide a comparatively small-scale device, that is a second harmonic generating device of a laser beam with which high-quality and large output light is obtained efficiently and stably. Specifically, the second harmonic generating device of a laser beam source includes a laser beam source, an optical resonator into which the said laser beam is injected, and KTP crystals provided in the said optical resonator. The KTP crystals in the optical resonator are a first a-axis-cut KTP crystal in which a beam of light carries out a-axis propagation and a second a-axis-cut KTP crystal, which is the same length as the first a-axis-cut KTP crystal and is rotated 90 degrees on the a-axis with respect to the first a-axis-cut KTP crystal.
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patent: 5315433 (1994-05-01), Okazaki et al.
patent: 5732095 (1998-03-01), Zorabedian
patent: 6137624 (2000-10-01), Taira
patent: 6172800 (2001-01-01), Kouta
patent: 2004/0240492 (2004-12-01), Kojima et al.
Harvey Minsun
National Institute of Information and Communications Technology
Nguyen Tuan N.
Westerman, Hattori, Daniels & Adrian , LLP.
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