Method for modulating an optical signal and optical transmitter

Details Method for modulating an optical signal and optical transmitter Method for modulating an optical signal and optical transmitter

2005-12-15

2009-10-06

Phan, Hanh (Department: 2613)

Optical communications

Transmitter

Having particular modulation

C398S185000, C398S186000, C398S188000, C359S245000, C359S237000, C359S238000, C359S248000

Reexamination Certificate

active

07599628

ABSTRACT:
A method for modulating an optical signal includes the following steps: modulating the intensity of the optical signal with a nonreturn-to-zero bit signal, and modulating the phase of the optical signal with a periodic phase-shift signal creating an alternating π-phase shift every second, third or more consecutive bit. An optical transmitter for performing the above method comprises a first modulator (2) modulating the intensity of the optical signal with a nonreturn-to-zero bit signal, and a second modulator (3) modulating the phase of the optical signal with a periodic phase-shift signal creating an alternating π-phase shift every second, third or more consecutive bit.

REFERENCES:
patent: 5920416 (1999-07-01), Beylat et al.
patent: 6188497 (2001-02-01), Franck et al.
patent: 6693929 (2004-02-01), Essiambre et al.
patent: 6721081 (2004-04-01), Mauro et al.
patent: 6809849 (2004-10-01), Akiyama et al.
patent: 6882802 (2005-04-01), Ohhira
patent: 7305189 (2007-12-01), Martensson et al.
patent: 2002/0005975 (2002-01-01), Nakamoto
patent: 2003/0035185 (2003-02-01), Grandpierre et al.
patent: 2003/0053179 (2003-03-01), Hayee
patent: 2003/0128923 (2003-07-01), Takiguchi et al.
patent: 2003/0156774 (2003-08-01), Conradi
patent: 2003/0175036 (2003-09-01), Mamyshev et al.
patent: 2003/0210912 (2003-11-01), Leuthold et al.
patent: 2003/0219259 (2003-11-01), Martensson et al.
patent: 2004/0076439 (2004-04-01), Lee et al.
patent: 1 059 758 (2000-12-01), None
patent: 1 462 848 (2004-09-01), None
patent: WO 01/48955 (2001-07-01), None
patent: WO 03/092237 (2003-11-01), None
Hodzic A et al: “Alternative Modulation Formats in N x 40 GB/S WDM Standard Fiber RZ-Transmission Systems” Journal of Lightwave Technology, IEEE. New York, US, vol. 20, No. 4 Apr. 2002, pp. 598-607, XP001130018.

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