Chirp switching circuit and optical transmission system

Details Chirp switching circuit and optical transmission system Chirp switching circuit and optical transmission system

2006-02-24

2010-06-22

Bello, Agustin (Department: 2613)

Optical communications

Multiplex

Wavelength division or frequency division

C398S082000, C398S199000

Reexamination Certificate

active

07742702

ABSTRACT:
A chirp switching circuit comprises a Mach-Zehnder modulator having a Y-branched part for branching an incoming optical signal into first and second optical signals and an X-branched part merging the first and second optical signals with each other, the Mach-Zehnder modulator causing phase modulation in the first and second optical signals by a modulation signal, and a directional coupling optical switch that switches first and second optical output signals output from the X-branched part of the Mach-Zehnder modulator by merging the first and second output optical signals in response to a chirp switching control signal.

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