DocumentCode :
1242872
Title :
Compact Variable {\\rm TE} - {\\rm TM} Polarization Splitter Based on Simplified Coherent Couplin
Author :
Lin, Chia-Wei ; Huang, Wen-Hung ; Wang, Way-Seen
Author_Institution :
Grad. Inst. of Electron. Eng., Nat. Taiwan Univ., Taipei
Volume :
27
Issue :
13
fYear :
2009
fDate :
7/1/2009 12:00:00 AM
Firstpage :
2282
Lastpage :
2288
Abstract :
A compact-sized electrically tunable TE-TM mode splitter composed of a mode converter and an asymmetric Y-branch structure is presented. The asymmetric Y-branch consists of a straight and a bent waveguides to split two polarization modes based on the mode-sorting effect. To shorten the device length, a simplified coherently coupled-bending structure is utilized for the bent waveguide. Experimental results show that the device length is reduced about 52%, extinction ratios of both TE and TM modes are higher than 25 dB, yet the applied voltage is not significantly increased.
Keywords :
convertors; electro-optical devices; extinction coefficients; light polarisation; lithium compounds; optical beam splitters; optical polarisers; optical waveguides; ridge waveguides; LiNbO3; asymmetric Y-branch structure; bent waveguide; electrically tunable mode splitter; electro-optic device; extinction ratio; lithium niobate; mode converter; mode-sorting effect; polarization mode; ridge waveguide; simplified coherent coupling; variable TE-TM polarization splitter; Electro-optic device; optical polarization splitter; ridge waveguide; simplified coherent coupling;
fLanguage :
English
Journal_Title :
Lightwave Technology, Journal of
Publisher :
ieee
ISSN :
0733-8724
Type :
jour
DOI :
10.1109/JLT.2008.2006995
Filename :
4815484
Link To Document :
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