Optical: systems and elements – Optical frequency converter
Reexamination Certificate
2008-08-15
2009-02-17
Sanghavi, Hemang (Department: 2874)
Optical: systems and elements
Optical frequency converter
C359S332000, C385S122000
Reexamination Certificate
active
07492507
ABSTRACT:
Particular embodiments of the present invention relate generally to semiconductor lasers and wavelength conversion devices and, more particularly, to wavelength conversion devices and methods of fabrication thereof that reduce back reflections of light from the wavelength conversion device to the laser. According to one embodiment of the present invention, a wavelength conversion device comprising a nonlinear optical material is poled with domains comprising randomly varying domain widths defined by an ideal poling period ΛIplus or minus a disruption value. According to another embodiment, the wavelength conversion device comprises a plurality of sequentially positioned ideal poling domains and one or more non-ideal poling domains. The ideal poling domains comprise a domain width of the ideal poling period ΛIwhile the non-ideal poling domains comprise a domain width of the ideal poling period ΛIplus or minus a discontinuity value.
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Bean Gregory V.
Beyer James E.
Corning Incorporated
Dinomore & Shohl, LLP
Sanghavi Hemang
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