Chirp control of a Mach-Zehnder optical modulator using non-equa

Details Chirp control of a Mach-Zehnder optical modulator using non-equa Chirp control of a Mach-Zehnder optical modulator using non-equa

1995-05-25

1996-06-04

Bovernick, Rodney B.

Optical waveguides

Directional optical modulation within an optical waveguide

Electro-optic

385 2, 385 14, 385 45, G02B 610

Patent

active

055240763

ABSTRACT:
A Mach-Zehnder optical modulator in which the chirp parameter can be varied by adjusting the optical power splitting ratio between the two arms of the interferometer. The modulating voltage is supplied to a single arm or alternatively to both arms in a push-pull configuration. For an appropriate power splitting ratio negative chirp is achieved with approximately equal push-pull modulating drive voltage. This results in optimum distance and bit rate characteristics with low drive power.

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