TY - JOUR
T1 - Low loss, high extinction ration and ultra-compact plasmonic polarization beam splitter
AU - Ma, Youqiao
AU - Farrell, Gerald
AU - Semenova, Yuliya
AU - Chan, Hau Ping
AU - Zhang, Hongzhou
AU - Wu, Qiang
PY - 2014/1/24
Y1 - 2014/1/24
N2 - In this letter, an ultra-compact plasmonic polarization beam splitter (PBS) is proposed and investigated by numerical simulations using the finite element method. The PBS is based on a three-core plasmonic directional coupler, which uses a long range surface plasmon polaritons waveguide as the middle waveguide to achieve polarization selective coupling. The calculations show that with proper structural parameters, the PBS with low insertion losses of 0.17 and 0.25 dB for TE and TM polarizations, respectively, and high extinction ratios of 20.17 and 19.83 dB for TE and TM polarizations, respectively, can be realized at a telecommunication wavelength of 1550 nm. Furthermore, an insertion loss and an extinction ratio > 14 dB can be realized across the entire C-band for both TE and TM polarizations.
AB - In this letter, an ultra-compact plasmonic polarization beam splitter (PBS) is proposed and investigated by numerical simulations using the finite element method. The PBS is based on a three-core plasmonic directional coupler, which uses a long range surface plasmon polaritons waveguide as the middle waveguide to achieve polarization selective coupling. The calculations show that with proper structural parameters, the PBS with low insertion losses of 0.17 and 0.25 dB for TE and TM polarizations, respectively, and high extinction ratios of 20.17 and 19.83 dB for TE and TM polarizations, respectively, can be realized at a telecommunication wavelength of 1550 nm. Furthermore, an insertion loss and an extinction ratio > 14 dB can be realized across the entire C-band for both TE and TM polarizations.
KW - plasmon polaritons
KW - polarization beam splitter
U2 - 10.1109/LPT.2014.2302354
DO - 10.1109/LPT.2014.2302354
M3 - Article
SN - 1041-1135
VL - 26
SP - 660
EP - 663
JO - IEEE Photonics Technology Letters
JF - IEEE Photonics Technology Letters
IS - 7
ER -