Title :
Polarization splitter using asymmetric sidewall long-period waveguide gratings in a two-mode silicon waveguide
Author :
Cho, Young-Bo ; Oh, Gyong-Jin ; Yeo, Dong-Min ; Shin, Sang-Yung
Author_Institution :
Dept. of Electr. Eng., KAIST, Daejeon
Abstract :
We demonstrate a silicon polarization splitter, which uses sidewall long-period waveguide gratings for coupling between the two core modes. The TM- and TE-like modes are divided in an asymmetric Y-branch. The measured maximum cross-talks of the TM-and TE-like modes are 15.8 and 15.1 dB, respectively. The extinction ratios of port I and II are 18.3 and 12.6 dB, respectively.
Keywords :
diffraction gratings; elemental semiconductors; optical beam splitters; optical couplers; optical crosstalk; optical fabrication; silicon; Si; TE-like modes; TM-like modes; asymmetric Y-branch; asymmetric sidewall long-period waveguide grating; core modes; extinction ratios; optical coupling; optical crosstalk; silicon polarization splitter fabrication; two-mode silicon waveguide; Gratings; Optical crosstalk; Optical fiber devices; Optical fiber polarization; Optical polarization; Optical refraction; Optical variables control; Optical waveguides; Silicon; Wire;
Conference_Titel :
Opto-Electronics and Communications Conference, 2008 and the 2008 Australian Conference on Optical Fibre Technology. OECC/ACOFT 2008. Joint conference of the
Conference_Location :
Sydney
Print_ISBN :
978-0-85825-807-5
Electronic_ISBN :
978-0-85825-807-5
DOI :
10.1109/OECCACOFT.2008.4610556
