A Compact Ultrabroadband Polarization Beam Splitter Utilizing a Hybrid Plasmonic Y-Branch
A compact and ultrabroadband polarization beam splitter (PBS) utilizing a hybrid plasmonic Y-branch (HPYB) on a silicon-on-insulator (SOI) platform is proposed and numerically demonstrated. The HPYB consists of a vertical hybrid plasmonic waveguide (HPW) and a horizontal HPW formed by silicon (Si) a...
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2016-01-01
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| Online Access: | https://ieeexplore.ieee.org/document/7501473/ |
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| author | Ting Hu Haodong Qiu Zecen Zhang Xin Guo Chongyang Liu Mohamed S. Rouifed Callum G. Littlejohns Graham T. Reed Hong Wang |
| author_facet | Ting Hu Haodong Qiu Zecen Zhang Xin Guo Chongyang Liu Mohamed S. Rouifed Callum G. Littlejohns Graham T. Reed Hong Wang |
| author_sort | Ting Hu |
| collection | DOAJ |
| description | A compact and ultrabroadband polarization beam splitter (PBS) utilizing a hybrid plasmonic Y-branch (HPYB) on a silicon-on-insulator (SOI) platform is proposed and numerically demonstrated. The HPYB consists of a vertical hybrid plasmonic waveguide (HPW) and a horizontal HPW formed by silicon (Si) and silver (Ag) strip waveguides sandwiched with a silicon dioxide (SiO<sub>2</sub>) layer, in which the vertical and horizontal hybrid plasmonic modes (HPMs) are excited by the input transverse electric (TE) and transverse magnetic (TM) modes, respectively. The HPMs are split into different ports and coupled back to TE and TM modes to implement the polarization splitting function. A simplified and compact HPYB is robust for the HPMs' generation. The structure is wavelength insensitive since the HPMs' excitation is weakly correlated to the optical wavelengths. The simulation results show that the HPYB-based PBS has a compact footprint of <inline-formula> <tex-math notation="LaTeX">$5 \times 1.8\ \mu\text{m}^2$</tex-math></inline-formula> and an ultralarge working bandwidth of 285 nm, with the polarization crosstalk < −10 dB and the worst-case TE (TM) mode insertion loss of −1.53 (−2.35) dB. The device also exhibits a large fabrication tolerance of 210-nm variation (from −100 to 110 nm) to the waveguide width for both polarizations. |
| format | Article |
| id | doaj-art-b0822674117041ff90c448b652b65df8 |
| institution | Kabale University |
| issn | 1943-0655 |
| language | English |
| publishDate | 2016-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Photonics Journal |
| spelling | doaj-art-b0822674117041ff90c448b652b65df82025-08-20T03:30:55ZengIEEEIEEE Photonics Journal1943-06552016-01-01841910.1109/JPHOT.2016.25851137501473A Compact Ultrabroadband Polarization Beam Splitter Utilizing a Hybrid Plasmonic Y-BranchTing Hu0Haodong Qiu1Zecen Zhang2Xin Guo3Chongyang Liu4Mohamed S. Rouifed5Callum G. Littlejohns6Graham T. Reed7Hong Wang8School of Electrical and Electronic Engineering, Nanyang Technological University, SingaporeSchool of Electrical and Electronic Engineering, Nanyang Technological University, SingaporeSchool of Electrical and Electronic Engineering, Nanyang Technological University, SingaporeSchool of Electrical and Electronic Engineering, Nanyang Technological University, SingaporeTemasek Laboratories, Nanyang Technological University, SingaporeSchool of Electrical and Electronic Engineering, Nanyang Technological University, SingaporeSchool of Electrical and Electronic Engineering, Nanyang Technological University, SingaporeOptoelectronics Research Centre, Building 53, University of Southampton, Southampton, U.K.School of Electrical and Electronic Engineering, Nanyang Technological University, SingaporeA compact and ultrabroadband polarization beam splitter (PBS) utilizing a hybrid plasmonic Y-branch (HPYB) on a silicon-on-insulator (SOI) platform is proposed and numerically demonstrated. The HPYB consists of a vertical hybrid plasmonic waveguide (HPW) and a horizontal HPW formed by silicon (Si) and silver (Ag) strip waveguides sandwiched with a silicon dioxide (SiO<sub>2</sub>) layer, in which the vertical and horizontal hybrid plasmonic modes (HPMs) are excited by the input transverse electric (TE) and transverse magnetic (TM) modes, respectively. The HPMs are split into different ports and coupled back to TE and TM modes to implement the polarization splitting function. A simplified and compact HPYB is robust for the HPMs' generation. The structure is wavelength insensitive since the HPMs' excitation is weakly correlated to the optical wavelengths. The simulation results show that the HPYB-based PBS has a compact footprint of <inline-formula> <tex-math notation="LaTeX">$5 \times 1.8\ \mu\text{m}^2$</tex-math></inline-formula> and an ultralarge working bandwidth of 285 nm, with the polarization crosstalk < −10 dB and the worst-case TE (TM) mode insertion loss of −1.53 (−2.35) dB. The device also exhibits a large fabrication tolerance of 210-nm variation (from −100 to 110 nm) to the waveguide width for both polarizations.https://ieeexplore.ieee.org/document/7501473/Integrated optics devicespolarization-selective devicesplasmonics |
| spellingShingle | Ting Hu Haodong Qiu Zecen Zhang Xin Guo Chongyang Liu Mohamed S. Rouifed Callum G. Littlejohns Graham T. Reed Hong Wang A Compact Ultrabroadband Polarization Beam Splitter Utilizing a Hybrid Plasmonic Y-Branch IEEE Photonics Journal Integrated optics devices polarization-selective devices plasmonics |
| title | A Compact Ultrabroadband Polarization Beam Splitter Utilizing a Hybrid Plasmonic Y-Branch |
| title_full | A Compact Ultrabroadband Polarization Beam Splitter Utilizing a Hybrid Plasmonic Y-Branch |
| title_fullStr | A Compact Ultrabroadband Polarization Beam Splitter Utilizing a Hybrid Plasmonic Y-Branch |
| title_full_unstemmed | A Compact Ultrabroadband Polarization Beam Splitter Utilizing a Hybrid Plasmonic Y-Branch |
| title_short | A Compact Ultrabroadband Polarization Beam Splitter Utilizing a Hybrid Plasmonic Y-Branch |
| title_sort | compact ultrabroadband polarization beam splitter utilizing a hybrid plasmonic y branch |
| topic | Integrated optics devices polarization-selective devices plasmonics |
| url | https://ieeexplore.ieee.org/document/7501473/ |
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