Filter response optimization for an arrayed waveguide...

Details Filter response optimization for an arrayed waveguide... Filter response optimization for an arrayed waveguide...

2007-03-20

2007-03-20

Pak, Sung (Department: 2874)

Optical waveguides

With optical coupler

Input/output coupler

C385S031000

Reexamination Certificate

active

10082603

ABSTRACT:
A method of optimizing a filter response of an arrayed waveguide grating is disclosed. The method includes the step of measuring a respective phase error of a plurality of waveguide cores of the arrayed waveguide grating. Once the phase error is measured, a respective optical path length of the cores is adjusted in accordance with the respective phase error of the cores. Optical path length is adjusted by adjusting a respective refractive index of the cores. The respective optical path length can be controlled to nanometer accuracies by adjusting the respective refractive index of the cores.

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