Waveguide modulators having bias control with reduced...

Details Waveguide modulators having bias control with reduced... Waveguide modulators having bias control with reduced...

2005-12-20

2005-12-20

Healy, Brian M. (Department: 2883)

Optical waveguides

Temporal optical modulation within an optical waveguide

Electro-optic

C385S001000, C385S014000, C385S040000, C385S041000, C385S129000, C385S130000, C385S132000, C385S008000, C385S009000

Reexamination Certificate

active

06978056

ABSTRACT:
Optical modulators with reduced temperature dependence on bias control are described. A set of bias electrodes is arranged relative to a set of RF electrodes in a manner which results in the opening point of the device remaining relatively constant as a function of temperature. The arrangement of the bias electrodes relative to the RF electrodes includes a physical offset of one set of electrodes relative to the other, with or without a reversal of polarity of one set of electrodes relative to the other. Arrangements according to the present invention create a symmetrical electrode arrangement from a temperature-induced stress point of view so that the operating point of the device remains relatively constant as a function of temperature.

REFERENCES:
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Nadege Courjal, Henri Porte, Anthony Martinez and Jean-Pierre Goedgebuer, LiNbO3 Mach-Zehnder Modulator With Chirp Adjusted by Ferroelectric Domain Inversion, IEEE Photonics Technology Letters, Nov. 2002, pp. 1509-1511, vol. 14, No. 11, IEEE.

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