06064788 is referenced by 3 patents and cites 12 patents.

Methods of using an adiabatic Y-branch digital optical modulator provide a substantially chirp-free modulator by changing the refractive index of only a first output branch of the modulator in response to a modulating signal. A second output branch of the modulator, where no refractive index change is induced, is used as the modulator output. The frequency chirp in this Y-branch modulator is negligible because the modulator output waveguide branch experiences little or no refractive index change and, therefore, little or no phase shift in operation. Substantially all of the phase shift occurs in the waveguide branch where the refractive index change is induced. According to a further embodiment, one or both of the output branches are comprised of one or more tapered waveguide sections.

Title
Adiabatic Y-branch modulator with negligible chirp
Application Number
8/911197
Publication Number
6064788
Application Date
August 14, 1997
Publication Date
May 16, 2000
Inventor
Rene Henri Monnard
Old Bridge
NJ, US
Mujibun Nisa Khan
Holmdel
NJ, US
Assignee
Lucent Technologies
NJ, US
IPC
G02B 6/10
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