Title :
Transverse Bragg-resonant enhancement of Modulation and switching
Author :
Liang, Wei ; Xu, Yong ; Choi, John M. ; Yariv, Amnon ; Ng, Willie
Author_Institution :
Dept. of Appl. Phys., California Inst. of Technol., Pasadena, CA, USA
Abstract :
We demonstrate theoretically that the electrooptic phase retardation, hence, modulation, can be enhanced very substantially in transverse Bragg resonance (TBR) waveguides. This enhancement is due fundamentally to the strong dependence of the dispersion of the TBR waveguide on the Bragg condition. Both theoretical and numerical analysis show that this enhancement can be used to improve the performance of directional coupler switches and electroabsorption modulators, leading potentially to major reductions in the device size or the switching voltage/current.
Keywords :
electro-optical modulation; electro-optical switches; electroabsorption; optical couplers; optical dispersion; optical waveguide theory; directional coupler switches; electroabsorption modulators; electrooptic modulation; electrooptic phase retardation; electrooptic switches; electrooptical switching; transverse Bragg-resonance waveguides; transverse Bragg-resonant enhancement; waveguide dispersion; Communication switching; Dielectric constant; Directional couplers; Electrooptic modulators; Electrooptical waveguides; Optical switches; Optical waveguide theory; Optical waveguides; Phase modulation; Waveguide theory;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2004.834559
