Chirp Managed Laser (CML) transmitter

Details Chirp Managed Laser (CML) transmitter Chirp Managed Laser (CML) transmitter

2007-04-06

2009-06-02

Pascal, Leslie (Department: 2613)

Optical communications

Transmitter

Having particular modulation

C398S201000

Reexamination Certificate

active

07542683

ABSTRACT:
A fiber optic communication system comprising:an optical signal source adapted to receive a binary base signal having a bit period T, and generate a first signal, wherein the first signal is frequency modulated; andan optical spectrum reshaper (OSR) adapted to reshape the first signal into a second signal, wherein the second signal is amplitude modulated and frequency modulated;characterized in that:the frequency excursion of the first signal is adjusted such that the frequency excursion is substantially equal to the ratio of the bit period of the digital base signal to total dispersion of the transmission fiber, whereby to increase the tolerance of the second signal to dispersion in a transmission fiber.

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