Patent
1987-12-23
1988-12-27
Sikes, William L.
350 9614, 350 9615, 350358, G02B 626, G02F 100
Patent
active
047936762
ABSTRACT:
A fiber optic amplitude modulator couples light between two orthogonal polarization codes of a birefringent fiber. Dynamic coupling is caused by applying synchronized acoustic surface waves to the birefringent fiber in a direction normal to the fiber axis. A static biasing force is applied across the fiber to statically couple apparoximately 50% of the light input to one polarization mode into the other polarization mode. The additional force caused by the acoustic waves causes the fraction of coupled power to vary about the coupling caused by the static force.
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Sikes William L.
The Board of Trustees of the Leland Stanford Junior University
Ullah Akm E.
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