Title :
TE-Pass Polarizer With Cylinder Array Inserted in Buffer Layer of Silica-on-Silicon Waveguide
Author :
Weifeng Jiang ; Xiaohan Sun
Author_Institution :
Lab. of Photonics & Opt. Commun., Nat. Res. Center for Opt. Sensing/Commun. Integrated Networking, Nanjing, China
Abstract :
A TE-pass polarizer with cylinder array inserted in buffer layer of silica-on-silicon waveguide (CABL-WG) is proposed. The polarization characteristics of the CABL-WG are analyzed by means of the full vectorial finite element method at a wavelength of 1550 nm, where the low loss of TE fundamental mode could be made while the TM fundamental mode has very large leakage loss. The optimization design for the polarizer with ultralow insertion loss of 0.07 dB and high extinction ratio of 38.94 dB is given.
Keywords :
buffer layers; finite element analysis; integrated optoelectronics; light polarisation; optical arrays; optical design techniques; optical losses; optical polarisers; optical waveguides; silicon compounds; silicon-on-insulator; SiO2-Si; TE fundamental mode; TE-pass polarizer; TM fundamental mode; buffer layer; cylinder array; extinction ratio; full vectorial finite element method; insertion loss; leakage loss; loss 0.07 dB; optimization design; polarization characteristics; silica-on-silicon waveguide; wavelength 1550 nm; Arrays; Buffer layers; Extinction ratio; Fabrication; Optical fiber cables; Optical waveguides; Refractive index; Optical polarizer; buffer layer; cylinder array; silica-on-silicon;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2014.2309611
