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Ultracompact polarization beam splitter based on a dielectric-hybrid plasmonic-dielectric coupler
Fei Lou1, Daoxin Dai, Lech Wosinski
1Laboratory of Photonics and Microwave Engineering, Royal Institute of Technology, 16440 Kista, Sweden. flou@kth.se
Optics Letters
|February 6, 2013
Abstract:
An ultracompact polarization beam splitter (PBS) based on a dielectric-hybrid plasmonic-dielectric coupler is proposed. The device utilizes the polarization-dependent nature of hybrid plasmonic waveguides. By choosing proper waveguide parameters, a 2×5.1 μm2 PBS (including S-bends) with extinction ratios over 15 dB and insertion losses below 1.5 dB in the full C-band should be achievable. The effect of fabrication errors is also investigated.
