06222966 is referenced by 6 patents and cites 9 patents.

Changing the index in the two output branches of a Y-branch optical waveguide in opposite directions, in amounts which are controlled by electrical signals applied to the branches, is used to control the chirp of the signal outputted from the Y-branch optical waveguide. In this manner, predetermined amount of chirp can be add to or subtract from an input signal to the Y-branch optical waveguide. The Y-branch optical waveguide can be fabricated using Group II-VI, Group III-V or Group IV material systems or using an insulating material, such as lithium niobate. The output branches of a semiconductor implemented Y-branch optical waveguide can be fabricated to each include a multiple quantum well for controlling the refractive index of that branch in response to an electrical signal.

Title
Adiabatic Y-branch waveguide having controllable chirp
Application Number
9/222165
Publication Number
6222966 (B1)
Application Date
December 29, 1998
Publication Date
April 24, 2001
Inventor
Rene Henri Monnard
Old Bridge
NJ, US
Mujibun Nisa Khan
Holmdel
NJ, US
Agent
John A Caccuro
US
Assignee
Lucent Technologies
NJ, US
IPC
G02B 6/26
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