Travelling-wave electrooptic devices

Details Travelling-wave electrooptic devices Travelling-wave electrooptic devices

H - Electricity

01

P

333/32

H01P 1/18 (2006.01) G02F 1/035 (2006.01) G02F 1/313 (2006.01) H03H 7/18 (2006.01)

Patent

CA 1191563

Abstract: A simulated velocity match between a travelling optical wave and a travelling electrical modulating wave is obtained in a travelling wave, velocity mismatched electrooptic device. Modulator phase shifters and mode converters are examples of such devices. The match is obtained by introducing a 180 degree phase shift in the effect of the modulating signal upon the operative electrooptic parameter of the optical waveguide or guides. The phase shift is introduced at longitudinally spaced intervals along the electrical signal wavepath. This technique is employed to minimize the effect of walk-off due to velocity mismatch.

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