G - Physics – 02 – F
Patent
G - Physics
02
F
G02F 1/03 (2006.01) G02F 1/01 (2006.01) H04B 10/18 (2006.01) G02F 1/035 (2006.01)
Patent
CA 2342477
An electro-optic waveplate for changing the state of polarization of light passing therethrough is disclosed. The waveplate provides a substantially constant birefringence when the principle birefringent axes of the electro-optic waveplate are rotated. The waveplate is an electro-optical material having two principle orthogonal birefringent axes that are rotable when suitable voltages are applied. Two related different voltages are applied along sequential or contiguous regions along the length L of the electro-optical waveplate for providing a controllable and varying electric field along the length L, such that retardance of the waveplate of the length L remains substantially constant while the birefringent axes of the electro-optic waveplate are rotated by varying the voltages. The two different voltages have a phase relationship or a phase and magnitude relationship therebetween.
Allard Louis
Merchant Clark
Tager Alex
Trzecieski Mike
Jds Uniphase Inc.
Teitelbaum & Maclean
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