Title :
Design of Compact Integrated InGaAsP/InP Polarization Controller Over the C-Band
Author :
Ragheb, Marwa M. ; El-Refaei, Hatem H. ; Khalil, Diaa ; Omar, Omar A.
Author_Institution :
Ain Shams Univ., Cairo
Abstract :
In this paper, we propose a compact integrated InGaAsP/InP polarization controller circuit. The proposed circuit transforms any incoming state of polarization (SOP) to any required SOP. It consists of two polarization beam splitters/ combiners, two polarization converters, a tunable power coupler, and a phase shifter, which are integrated on a single chip. The controller size is 6000 mum times 9.7 mum. Optical characteristics of the controller are evaluated by computer simulation using a 3-D full-vectorial beam propagation method. Simulation results show that the insertion loss is less than 3.2 dB, and the extinction ratio is more than -22 dB for the wavelength range from 1.53 to 1.56 mum.
Keywords :
III-V semiconductors; gallium arsenide; gallium compounds; indium compounds; integrated optics; light polarisation; optical beam splitters; optical couplers; optical design techniques; optical phase shifters; optical polarisers; 3D full vectorial beam propagation; C band; InGaAsP-InP; compact integrated polarization controller; computer simulation; extinction ratio; insertion loss; optical characteristics; phase shifter; polarization beam combiners; polarization beam splitters; polarization converters; single chip; state of polarization; tunable power coupler; wavelength 1.53 mum to 1.56 mum; Computer simulation; Coupling circuits; Indium phosphide; Optical control; Optical coupling; Optical polarization; Optical propagation; Phase shifters; Size control; Tunable circuits and devices; Integrated optics; multimode waveguides; optical communication; optical polarization;
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2007.903559
