Title :
An optimized InGaAsP/InP polarization converter employing asymmetric rib waveguides
Author :
El-Refaei, Hatem ; Yevick, David
Author_Institution :
Opt. Components, Nortel Networks, Nepean, Ont., Canada
fDate :
6/1/2003 12:00:00 AM
Abstract :
In this paper, we report on the design of a compact (≈ 226 μm) on-chip InGaAsP/InP polarization converter based on an asymmetric rib waveguide. Our theoretical analysis demonstrates that the device displays a conversion efficiency of < -25 dB (> 99.68% power conversion between orthogonal polarization) at 1550-nm wavelength with a nearly flat response over the optical C band. Regarding fabrication tolerances, we predict that the most sensitive design parameter is the waveguide width as the conversion efficiency drops to 10 dB for a deviation of ± 0.1 μm from the optimized value.
Keywords :
III-V semiconductors; gallium arsenide; gallium compounds; indium compounds; integrated optics; optical communication equipment; optical polarisers; optical waveguides; optimisation; rib waveguides; time division multiplexing; wavelength division multiplexing; 1550 nm; 226 micron; 99.68 percent; InGaAsP-InP; asymmetric rib waveguides; conversion efficiency; design parameter; fabrication tolerances; nearly flat response; optical C band; optimized InGaAsP/InP polarization converter; orthogonal polarization; power conversion; waveguide width; Displays; Indium phosphide; Optical device fabrication; Optical devices; Optical polarization; Optical sensors; Optical waveguide theory; Optical waveguides; Power conversion; Wavelength conversion;
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2003.811561
