Polarization controller using spatial filtering

Details Polarization controller using spatial filtering Polarization controller using spatial filtering

2006-07-11

2006-07-11

Kaveh, Kianni (Department: 2833)

Optical waveguides

Polarization without modulation

C385S012000, C385S013000

Reexamination Certificate

active

07076121

ABSTRACT:
A method for improving polarization extinction ratio includes changing a polarization state of a light beam, wherein the light beam thereafter includes spatially non-uniform polarization states, and spatially filtering the light beam to filter out the spatially non-uniform polarization states. Spatial filtering involves filtering a wavefront of the light beam by passing the light beam through a polarization-maintaining single-mode fiber, or filtering an amplitude of the light beam by passing the light beam through an aperture.

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