Optical: systems and elements – Optical frequency converter
Reexamination Certificate
2008-07-01
2008-07-01
Doan, Jennifer (Department: 2874)
Optical: systems and elements
Optical frequency converter
C359S328000
Reexamination Certificate
active
07394588
ABSTRACT:
A wavelength converter structure according to one aspect of the present invention comprises a ferroelectric substrate, a ridge positioned on the ferroelectric substrate, a plurality of first domains positioned in the ridge and a plurality of second domains interleaved between the first domains in the ridge. The first domains have a first polarization direction and the second domains have a second polarization direction opposite to the first polarization direction. The refraction index of the ferroelectric substrate is different from the refraction index of the ridge. The ridge may include a rectangular portion, a taper portion, or a taper portion and a rectangular portion connected to the taper portion.
REFERENCES:
patent: 6002515 (1999-12-01), Mizuuchi et al.
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patent: 6631231 (2003-10-01), Mizuuchi et al.
patent: 6836354 (2004-12-01), Kato et al.
patent: 6900928 (2005-05-01), Lin et al.
Chou Ming-Hsien
Lin Tze-Chia
Wu Tso-Lun
Connolly Bove & Lodge & Hutz LLP
Doan Jennifer
HC Photonics Corp.
Wyche Myron Keith
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