Title :
Electrooptic Bragg-deflection modulators in corrugated waveguides
Author :
Kotani, Hideo ; Namba, Susumu ; Kawabe, Mitsuo
Author_Institution :
Osaka University, Osaka, Japan
fDate :
5/1/1979 12:00:00 AM
Abstract :
An electrooptic Bragg-deflection modulator using a corrugated waveguide is discussed. A coupling between transmitted and diffracted waves caused by a Bragg diffraction grating is controlled by an incident angle change. By combining a grating and a prism deflector, a large angle deflection is performed with a low driving voltage. Numerical examples are presented for LiNbO3waveguides, and are compared with those of the modulator where the coupling is controlled by an index change.
Keywords :
Electrooptic modulation; Lithium materials/devices; Optical couplers; Optical diffraction gratings; Optical planar waveguide components; Bragg gratings; Corrugated surfaces; Diffraction gratings; Electrooptic modulators; Electrooptical waveguides; Low voltage; Optical diffraction; Optical surface waves; Optical waveguides; Waveguide transitions;
Journal_Title :
Quantum Electronics, IEEE Journal of
DOI :
10.1109/JQE.1979.1070020
