System for transmitting RZ pulses over an amplified optical line

Details System for transmitting RZ pulses over an amplified optical line System for transmitting RZ pulses over an amplified optical line

1996-08-28

1998-10-27

Negash, Kinfe-Michael

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359160, 359161, 359183, 359188, H04B 1004, H04B 1012

Patent

active

058284788

ABSTRACT:
A system for transmitting a return to zero type optical pulse stream includes an optical line and arrangements for amplifying and reshaping pulses distributed along the length of the line. The mean chromatic dispersion of the fiber of the line is of the normal type and the reshaping arrangements include a modulator that is synchronized to the pulse stream that it receives and that applies amplitude modulation to reshape the pulses temporally and phase modulation that is decreasing at the start of a pulse and increasing at the end of a pulse to reshape the pulses spectrally. The reshaping arrangements further include a band-pass filter.

REFERENCES:
patent: 5373382 (1994-12-01), Pirio et al.
patent: 5473458 (1995-12-01), Mamyshev et al.
patent: 5477375 (1995-12-01), Korotky et al.
patent: 5642215 (1997-06-01), Suzuki et al.

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