Title :
Fabrication tolerance study of a compact passive polarization rotator
Author :
Somasiri, N. ; Rahman, B.M.A. ; Obayya, S.S.A.
Author_Institution :
City Univ., London, UK
fDate :
4/1/2002 12:00:00 AM
Abstract :
In this paper, the expected performance of a compact low-loss passive polarization rotator is reported by using rigorous numerical approaches. The effects of waveguide width, slant angle, etch depth, and refractive index variations during its fabrication on the overall polarization conversion and polarization crosstalk are reported. It is also expected that over the 1.53to 1.61-μm wavelength range, polarization conversion would be more than 99% and polarization crosstalk would be better than -20 dB
Keywords :
finite element analysis; light polarisation; optical communication equipment; optical crosstalk; optical design techniques; optical fabrication; optical rotation; optical waveguide theory; refractive index; rib waveguides; 1.53 to 1.61 micron; compact low-loss passive polarization rotator; compact passive polarization rotator; etch depth; fabrication; fabrication tolerance; finite element method; optical waveguides; overall polarization conversion; polarization crosstalk; refractive index variations; slant angle; waveguide width; wavelength range; Fabrication; Optical crosstalk; Optical fiber polarization; Optical mixing; Optical polarization; Optical receivers; Optical refraction; Optical variables control; Optical waveguides; Semiconductor waveguides;
Journal_Title :
Lightwave Technology, Journal of
