Method and system for ultra-high bit rate fiber-optic...

Details Method and system for ultra-high bit rate fiber-optic... Method and system for ultra-high bit rate fiber-optic...

2005-09-29

2009-10-27

Leung, Christina Y (Department: 2613)

Optical communications

Transmitter

Having particular modulation

C398S152000, C398S155000

Reexamination Certificate

active

07609976

ABSTRACT:
A method and system for ultra-high bit rate fiber-optic communications (e.g., 160 Gb/s) utilize a phase-correlated modulation format where phases of bits in adjacent four-bit groups in transmitted optical pulse trains are altered by π (or 180°).

REFERENCES:
Pitois, “Optimisation of phase alternation in 160 Gbit/s transmission systems,” Optics Communications, vol. 242, issues 4-6, pp. 457-461, published online Sep. 11, 2004 and in print Dec. 8, 2004.
Gill et al. “pi/2 Alternate-Phase On-Off Keyed 42.7 Gb/s Long-Haul Transmission Over 1980 km of Standard Single-Mode Fiber,” IEEE Photonics Technology Letters, vol. 16, No. 3, pp. 906-908, Mar. 2004.
Appathurai et al. “Effective suppression of intra-channel nonlinear distortion in 40 Gbit/s transmission over standard singlemode fibre using alternate-phase RZ and alternate polarization,” Electronics Letters, vol. 20, issue 14, pp. 897-898, Jul. 8, 2004.
L. Moller et al., “A 160-Gb/s Group-Alternating-Phase CSRZ Format,” IEEE Photonics Tech. Lett., vol. 17, No. 10, October 1005, pp. 2233-2235.

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