Optical: systems and elements – Optical modulator – Light wave temporal modulation
Reexamination Certificate
2006-02-14
2006-02-14
Schwartz, Jordan M. (Department: 2873)
Optical: systems and elements
Optical modulator
Light wave temporal modulation
C359S245000, C359S259000
Reexamination Certificate
active
06999223
ABSTRACT:
The present invention relates to an optical modulator allowing appropriate interaction between signal electrodes and an optical waveguide, only by matching phases at input ends of the signal electrodes. The optical modulator includes an optical waveguide with its center part branched into two at two Y-branch waveguides, forming first and second waveguide arms, a first signal electrode transmitting a first electric signal interacting with first light propagating through the first waveguide arm in a predetermined manner, a second signal electrode transmitting a second electric signal interacting with second light propagating through the second waveguide arm in a predetermined manner, and earthed electrodes, and can match the interacting timing between the first electric signal and the first light to the interacting timing between the second electric signal and the second light, at a first input end supplying the first electric signal and a second input end supplying the second electric signal.
REFERENCES:
patent: 5991471 (1999-11-01), Yu
patent: 6310700 (2001-10-01), Betts
patent: 6320692 (2001-11-01), Notargiacomo
patent: 6580840 (2003-06-01), McBrien et al.
patent: 6606424 (2003-08-01), Ooi et al.
patent: 6678428 (2004-01-01), Seino et al.
patent: 2002/0005975 (2002-01-01), Nakamoto
patent: 2003/0165001 (2003-09-01), Uesaka
patent: 2000-56282 (2000-02-01), None
patent: WO 00/05623 (2000-02-01), None
Publication No. 02-196212, Patent Abstracts of Japan, Publication Date Aug. 2, 1990, inventors Takefumi et al.
Doi Masaharu
Ishizaka Tetsuo
Nakazawa Tadao
Seino Minoru
Tanaka Takehito
Fujitsu Limited
Schwartz Jordan M.
Staas & Halsey , LLP
Stultz Jessica
LandOfFree
Optical modulator does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Optical modulator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical modulator will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3698174