Ultracompact TE-Pass Polarizer Based on a Hybrid Plasmonic Waveguide
- 27 October 2014
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Photonics Technology Letters
- Vol. 27 (2), 201-204
- https://doi.org/10.1109/lpt.2014.2365029
Abstract
An ultracompact and broadband TE-pass polarizer based on a hybrid plasmonic waveguide is proposed on the silicon-on-insulator platform. The optimized design has an active region as small as 0.8 μm, which is the shortest polarizer reported until now, and exhibits high polarization-dependent transmission imposing a TM mode cutoff while leaving the TE mode almost unaffected. Finite-difference time-domain simulation reveals an insertion loss <;1 dB and an extinction ratio of 19 dB. The extinction ratio could be further improved to 25 dB over 300-nm bandwidth, with an insertion loss of 2.5 dB.Keywords
Funding Information
- National Natural Science Foundation of China (61205111, 61308118)
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