Data-aided multi-symbol phase estimation for optical...

Details Data-aided multi-symbol phase estimation for optical... Data-aided multi-symbol phase estimation for optical...

2006-02-27

2009-11-24

Phan, Hanh (Department: 2613)

Optical communications

Receiver

C398S188000, C398S183000, C398S208000, C398S209000

Reexamination Certificate

active

07623796

ABSTRACT:
A data-aided, multi-symbol phase estimation (MSPE) scheme is described for improving receiver sensitivity in the direct-detection of optical differential multi-level phase-shift keying (ODmPSK) signals including optical differential quadrature phase-shift keying (ODQPSK) signals, ODQPSK signals with amplitude shift keying (ODQPSK+ASK), optical differential 8-level phase-shift keying (OD8PSK) signals with eight phase levels, and optical differential phase-shift keying signals with more than eight phase levels. The use of data-aided MSPE substantially reduces the “differential detection penalty,” with receiver sensitivity approaching that of coherent detection schemes.

REFERENCES:
patent: 7444085 (2008-10-01), Ikeuchi et al.
patent: 2002/0012152 (2002-01-01), Agazzi et al.
patent: 2003/0198478 (2003-10-01), Vrazel et al.
patent: 2004/0081470 (2004-04-01), Griffin
patent: 2004/0218932 (2004-11-01), Epworth et al.
patent: 2008/0075472 (2008-03-01), Liu et al.
patent: 2009/0086215 (2009-04-01), Liu et al.
R. A. Griffin, “Integrated DQPSK Transmitters,” Optical Society of America, 2005, pp. 1-3.
C. Kim et al., “Direct-detection optical differential 8-level phase-shift keying (OD8PSK) for spectrally efficient transmission,” Optics Express, vol. 12, No. 15, Jul. 26, 2004.
D. Divsalar, et al., “Multiple-symbol differential detection of MPSK,” IEEE Trans. Commun., vol. COM-38, No. 3, Mar. 1990, pp. 300-308.
H. Leib, “Data-Aided Noncoherent Demodulation of DPSK,” IEEE Trans. on Comm., vol. 43, No. 2, Feb.-Apr. 1995, pp. 722-725.
Y. Yadin et al., “Soft detection of multichip DPSK over the nonlinear fiber-optic channel,” IEEE Photon. Technol. Lett., vol. 17, No. 9, Sep. 2005, pp. 2001-2003.
S. Calabro et al., “Improved Detection of Differential Phase Shift Keying through Multi-Symbol Phase Estimation”, 2004.
M. Nazarathy et al., “Multichip differential phase encoded optical transmission,” IEEE Photon. Technol. Lett., vol. 17, No. 5, May 2005, pp. 1133-1135.
S. Hayase et al., “Chromatic dispersion and SPM tolerance of 8-state/symbol (binary ASK and QPSK) modulated signal,” OSA 2004, ThM3.

Affiliated with

Also associated with

Rating

Data-aided multi-symbol phase estimation for optical... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Data-aided multi-symbol phase estimation for optical..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Data-aided multi-symbol phase estimation for optical... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4055806