Optical: systems and elements – Optical frequency converter
Reexamination Certificate
2008-05-13
2008-05-13
Sanghavi, Hemang (Department: 2874)
Optical: systems and elements
Optical frequency converter
C359S328000, C385S122000
Reexamination Certificate
active
07372621
ABSTRACT:
A wavelength converting device1has a ferroelectric layer6made of a ferroelectric material. The ferroelectric layer has a wavelength converting portion A having a ridge-type optical waveguide7, additional portions A and B provided in both sides of the wavelength converting portions, respectively, and groove-forming portions C and D between the wavelength converting portion and the additional portions, respectively. The device further has a supporting body2adhered to a back face6fof the ferroelectric layer6, and back side metal films5A and5B covering at least a part of a back face6fof the additional portions6, respectively. The back side metal film5A or5B does not cover the back face6fof the wavelength converting portion6.
REFERENCES:
patent: 5866200 (1999-02-01), Yoshino et al.
patent: 2001/0055453 (2001-12-01), Mizuuchi et al.
patent: 09-269430 (1997-10-01), None
U.S. Appl. No. 11/682,557, filed Mar. 6, 2007, Yoshino et al.
U.S. Appl. No. 11/682,557 filed Mar. 6, 2007, Yoshino et al.
Yamaguchi Shoichiro
Yoshino Takashi
Burr & Brown
NGK Insulators Ltd.
Sanghavi Hemang
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