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Design and Analysis of an Ultra-Compact and Ultra-Wideband Polarization Beam Splitter Based on Coupled Plasmonic Waveguide Arrays

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3 Author(s)
Chao-Yi Tai ; Nat. Central Univ., Taoyuan ; Sheng Hsiung Chang ; Tsenchieh Chiu

We present the design of an ultra-compact polarization beam splitter where three symmetrical dielectric channel waveguides are hybrid integrated with Au plasmonic waveguide arrays. Ultra-wideband operation over 50 THz with the insertion loss less than 2 dB for both transverse electric and transverse magnetic mode are predicted. The extinction ratio is better than 15 dB for both polarizations and it is realizable on a chip size as small as 0.93times4.2 mum2.

Published in:

Photonics Technology Letters, IEEE  (Volume:19 ,  Issue: 19 )