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

fYear

2012

fDate

13-16 Dec. 2012

Firstpage

1

Lastpage

4

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Photonics Global Conference (PGC), 2012

Conference_Location

Singapore

Print_ISBN

978-1-4673-2513-4

Type

conf

DOI

10.1109/PGC.2012.6458117

Filename

6458117