Method and apparatus for shaping a binary signal

Details Method and apparatus for shaping a binary signal Method and apparatus for shaping a binary signal

1998-04-09

2000-11-21

Negash, Kinfe-Michael

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359181, 375355, H04B 1000

Patent

active

061511463

ABSTRACT:
In order to re-synchronize and shape a binary signal of bit time T0, a method includes forming a number p of sampled signals obtained by causing the signal to modulate pulses that are of frequency 1/T0 and of duration substantially equal to T0/p, and that are carried by p optical carriers having different wavelengths. The method also includes combining delayed signals that are obtained by applying delays to the sampled signals, such that any two consecutive delayed signals are offset in time by T0/p. The method applies to optical communications systems.

REFERENCES:
patent: 4473901 (1984-09-01), Jensen
patent: 5329393 (1994-07-01), Huang
patent: 5555119 (1996-09-01), Lewis
Patent Abstracts of Japan, vol. 018, No. 213 (E-1538), Apr. 15, 1994 corresponding to JP 06 013981 A (Nippon Telgr & Telph Corp) dated Jan. 21, 1994.
R. S. Tucker et al, "Optical Time-Division Multiplexing for Very High Bit-Rate Transmission", Journal of Lightwave Technology , New York, NY, US, vol. 6, No. 11, Nov. 1988, pp. 1737-1749.

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