Title :
Mode converter between channel waveguide and slot waveguide
Author :
Jing Zhang ; Huijuan Zhang ; Shiyi Chen ; Zhe Xiao ; Feng Luan ; Guo-Qiang Lo
Author_Institution :
Inst. of Microelectron., A*STAR, Singapore, Singapore
Abstract :
Silicon slot waveguide based mode converter was designed for the effective mode conversion and polarization rotation between a horizontal channel waveguide and a vertical slot waveguide. The device with minimum length of 40μm was demonstrated in amorphous silicon waveguides to provide the mode conversion between the TE mode in the horizontal channel waveguide and the TM mode in the horizontal slot-waveguide. The insertion loss at the transition region plus the propagation loss in 1.5mm long slot waveguide was less than 3dB. More than 10 dB polarization extinction ratio (PER) was achieved in this device.
Keywords :
amorphous semiconductors; convertors; elemental semiconductors; light polarisation; optical losses; optical waveguides; silicon; Si; TE mode; amorphous silicon waveguides; effective mode conversion; horizontal channel waveguide; insertion loss; mode converter; polarization extinction ratio; polarization rotation; propagation loss; silicon vertical slot waveguide; size 1.5 mm; size 40 mum; Broadband communication; Finite difference methods; Optical polarization; Optical refraction; Optical variables measurement; Optical waveguides; (250.5300) Photonic integrated circuits; Polarization; mode convertor; slot waveguide;
Conference_Titel :
Photonics Global Conference (PGC), 2012
Conference_Location :
Singapore
Print_ISBN :
978-1-4673-2513-4
DOI :
10.1109/PGC.2012.6458117
