Optical communications – Transmitter – Including compensation
Reexamination Certificate
2007-06-29
2010-11-09
Sedigihian, M. R. (Department: 2613)
Optical communications
Transmitter
Including compensation
C398S192000, C398S186000, C359S276000, C359S239000, C359S249000
Reexamination Certificate
active
07831155
ABSTRACT:
The present invention provides an optical transmission device100capable of solving the problem of an unnecessary residual sideband components to thereby obtain a high-quality optical intensity-modulated signal in a case where an SSB optical modulation section20has wavelength dependence and a manufacturing error. In the optical transmission device100, where the SSB optical modulation section20cannot evenly branch the intensity of the optical carrier into two routes of optical waveguide, the amplitude adjusting section62adjusts the amplitude of an electric signal that changes the refractive index of the SSB optical modulation section20so that the unnecessary sideband component of the optical intensity-modulated signal outputted from the SSB optical modulation section20disappears.
REFERENCES:
patent: 6404535 (2002-06-01), Leight
patent: 6583910 (2003-06-01), Satoh
patent: 7224506 (2007-05-01), Kim et al.
patent: 7330667 (2008-02-01), Fells
patent: 2004/0161249 (2004-08-01), Suda et al.
patent: 2004/0208436 (2004-10-01), Hakimi et al.
patent: 2007/0092266 (2007-04-01), Shimizu et al.
patent: 2007/0110454 (2007-05-01), Maeda et al.
patent: 2005-208172 (2005-08-01), None
Graham H. Smith et al., “Overcoming Chromatic-Dispersion Effects in Fiber-Wireless Systems Incorporating External Modulators”, IEEE Transactions on Microwave Theory and Techniques, vol. 45, No. 8, pp. 1410-1415, Aug. 1997.
Masuda Kouichi
Ohira Tomoaki
Panasonic Corporation
Sedigihian M. R.
Wenderoth , Lind & Ponack, L.L.P.
LandOfFree
Optical transmission device 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 transmission device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical transmission device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4192122