Optical return-to-zero phase-shift keying with improved...

Details Optical return-to-zero phase-shift keying with improved... Optical return-to-zero phase-shift keying with improved...

2008-07-08

2008-07-08

Phan, Hanh (Department: 2613)

Optical communications

Transmitter

Having particular modulation

C398S182000, C398S184000, C398S185000, C398S186000, C398S187000, C398S188000, C398S189000, C398S192000, C398S193000, C398S194000, C398S196000, C398S197000, C398S198000, C398S200000, C398S201000, C398S141000, C398S154000, C398S155000, C398S158000, C398S159000

Reexamination Certificate

active

11176333

ABSTRACT:
An apparatus and a method for transmitting at least a digital optical signal with return-to-zero phase-shift keying, employing a single optical modulator with dual-drive design, the encoded optical signal having improved spectral efficiency and performances and being generated by transmitters with simplified scheme; an optical communication system comprising the transmitting apparatus, a transmission line and an apparatus to receive the optical signal.

REFERENCES:
patent: 7116917 (2006-10-01), Miyamoto et al.
patent: 7206519 (2007-04-01), Lee et al.

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