Optical waveguides – Polarization without modulation
Reexamination Certificate
2006-02-10
2008-12-16
Pak, Sung (Department: 2874)
Optical waveguides
Polarization without modulation
C385S006000, C385S008000, C359S251000, C359S281000, C359S283000, C359S301000, C359S302000, C359S303000, C359S304000, C359S352000, C359S483010
Reexamination Certificate
active
07466878
ABSTRACT:
A polarization controller includes a phase retarder having a rotation about an {1,0,0} axis that receives an optical signal from a waveguide structure. At least one nanoelectromechanical dielectric perturber produces ±45° birefringent axes by placing the at least one nanoelectromechanical dielectric perturber at selective positions around the phase retarder to produce dynamic change in the effective index in one of the modes existent in an extraordinary axial direction.
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Ippen Erich P.
Phua Poh-Boon
Wong Chee Wei
Gauthier & Connors LLP
Massachusetts Institute of Technology
Pak Sung
Smith Chad H
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