Title :
Design of Integrated Polarization Beam Splitter With Liquid Crystal
Author :
Wang, Qian ; Farrell, Gerald ; Semenova, Yuliya
Author_Institution :
Appl. Optoelectronics Centre, Dublin Inst. of Technol.
Abstract :
An integrated polarization beam splitter based on a directional coupler (DC) with an etched slot and filled-in liquid crystal covering layer, which utilizes the birefringence of liquid crystal materials, is proposed. A supermode solution for the DC involving birefringence materials and the corresponding full-vector anisotropic beam propagation method are employed as modeling tools. A numerical design of the proposed structure is presented. Beam propagation behavior along the whole structure involving curved input and output regions and central coupling region is simulated. Simulation result shows an extinction ratio of 25.3 and 41.9 dB for the TE and TM mode, respectively
Keywords :
birefringence; etching; integrated optics; light polarisation; light propagation; liquid crystals; optical beam splitters; optical design techniques; optical directional couplers; TE mode; TM mode; anisotropic beam propagation; beam splitter design; birefringence; birefringence materials; directional coupler; etched spot; full-vector beam propagation; integrated beam splitter; liquid crystal; polarization beam splitter; supermode solution; Anisotropic magnetoresistance; Birefringence; Crystalline materials; Directional couplers; Etching; Extinction ratio; Liquid crystals; Optical coupling; Polarization; Tellurium; Directional coupler (DC); liquid crystals; polarization beam splitter (PBS);
Journal_Title :
Selected Topics in Quantum Electronics, IEEE Journal of
DOI :
10.1109/JSTQE.2006.883156
