Dispersion tolerant optical system and method

Details Dispersion tolerant optical system and method Dispersion tolerant optical system and method

2008-12-16

2011-11-22

Tran, Dzung (Department: 2613)

Optical communications

Transmitter

Having particular modulation

C398S190000, C398S199000

Reexamination Certificate

active

08064776

ABSTRACT:
An optical communication system and method of use are described. The system comprises an optical source adapted to receive a digitally encoded data signal comprising sequences of data at a data rate (B) and comprising two signal levels representing a first state and a second state of the data signal, the optical source being adapted to produce an optical signal substantially frequency modulated with frequency excursion Δν comprising a first instantaneous frequency (ν0) associated to the first state and a second instantaneous frequency (ν1) associated to the second state; an optical converter adapted to receive the substantially frequency modulated optical signal, the optical converter having an optical transfer function varying with frequency and including at least one pass band, the at least one pass band having a peak transmittance and at least a low-transmittance region.

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U. Fischer, “10 Gbits transmission over 69 km of non-dispersion-shifted singlemode fibre with CPFSK direct modulation of 1.55 mu m BH DFB laser” Electronics Letters vol. 28, Issue 14, Jul. 2, 1992, p. 1305-1306.

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