Tilted Nano-Grating Based Ultra-Compact Broadband Polarizing Beam Splitter for Silicon Photonics
An ultra-compact broadband silicon polarizing beam splitter is proposed based on a tilted nano-grating structure. A light cross coupling can be realized for transverse-magnetic mode, while the transverse-electric light can almost completely output from the through port. The length of the coupling re...
| Main Authors: | , , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2021-10-01
|
| Series: | Nanomaterials |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2079-4991/11/10/2645 |
| _version_ | 1797513602133917696 |
|---|---|
| author | Haipeng Liu Jijun Feng Jinman Ge Shanqing Zhuang Shuo Yuan Yishu Chen Xiaojun Li Qinggui Tan Qinghua Yu Heping Zeng |
| author_facet | Haipeng Liu Jijun Feng Jinman Ge Shanqing Zhuang Shuo Yuan Yishu Chen Xiaojun Li Qinggui Tan Qinghua Yu Heping Zeng |
| author_sort | Haipeng Liu |
| collection | DOAJ |
| description | An ultra-compact broadband silicon polarizing beam splitter is proposed based on a tilted nano-grating structure. A light cross coupling can be realized for transverse-magnetic mode, while the transverse-electric light can almost completely output from the through port. The length of the coupling region is only 6.8 μm, while an extinction ratio of 23.76 dB can be realized at a wavelength of 1550 nm. As a proof of concept, the device was fabricated by a commercial silicon photonic foundry. It can realize a 19.84 dB extinction ratio and an 80 nm working bandwidth with an extinction ratio of larger than 10 dB. The presented device also shows a good fabrication tolerance to the structure deviations, which is favorable for its practical applications in silicon photonics. |
| first_indexed | 2024-03-10T06:18:53Z |
| format | Article |
| id | doaj.art-1ec15a3d3aaa447abc93721fc7569b20 |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-03-10T06:18:53Z |
| publishDate | 2021-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj.art-1ec15a3d3aaa447abc93721fc7569b202023-11-22T19:24:28ZengMDPI AGNanomaterials2079-49912021-10-011110264510.3390/nano11102645Tilted Nano-Grating Based Ultra-Compact Broadband Polarizing Beam Splitter for Silicon PhotonicsHaipeng Liu0Jijun Feng1Jinman Ge2Shanqing Zhuang3Shuo Yuan4Yishu Chen5Xiaojun Li6Qinggui Tan7Qinghua Yu8Heping Zeng9Shanghai Key Laboratory of Modern Optical System, Engineering Research Center of Optical Instrument and System, Ministry of Education, School of Optical-Electrical and Computer Engineering, University of Shanghai for Science and Technology, Shanghai 200093, ChinaShanghai Key Laboratory of Modern Optical System, Engineering Research Center of Optical Instrument and System, Ministry of Education, School of Optical-Electrical and Computer Engineering, University of Shanghai for Science and Technology, Shanghai 200093, ChinaNational Key Laboratory of Science and Technology on Space Microwave, China Academy of Space Technology, Xi’an 710100, ChinaShanghai Key Laboratory of Modern Optical System, Engineering Research Center of Optical Instrument and System, Ministry of Education, School of Optical-Electrical and Computer Engineering, University of Shanghai for Science and Technology, Shanghai 200093, ChinaShanghai Key Laboratory of Modern Optical System, Engineering Research Center of Optical Instrument and System, Ministry of Education, School of Optical-Electrical and Computer Engineering, University of Shanghai for Science and Technology, Shanghai 200093, ChinaShanghai Key Laboratory of Modern Optical System, Engineering Research Center of Optical Instrument and System, Ministry of Education, School of Optical-Electrical and Computer Engineering, University of Shanghai for Science and Technology, Shanghai 200093, ChinaNational Key Laboratory of Science and Technology on Space Microwave, China Academy of Space Technology, Xi’an 710100, ChinaNational Key Laboratory of Science and Technology on Space Microwave, China Academy of Space Technology, Xi’an 710100, ChinaKey Laboratory of Intelligent Infrared Perception, Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai 200083, ChinaChongqing Key Laboratory of Precision Optics, Chongqing Institute of East China Normal University, Chongqing 401120, ChinaAn ultra-compact broadband silicon polarizing beam splitter is proposed based on a tilted nano-grating structure. A light cross coupling can be realized for transverse-magnetic mode, while the transverse-electric light can almost completely output from the through port. The length of the coupling region is only 6.8 μm, while an extinction ratio of 23.76 dB can be realized at a wavelength of 1550 nm. As a proof of concept, the device was fabricated by a commercial silicon photonic foundry. It can realize a 19.84 dB extinction ratio and an 80 nm working bandwidth with an extinction ratio of larger than 10 dB. The presented device also shows a good fabrication tolerance to the structure deviations, which is favorable for its practical applications in silicon photonics.https://www.mdpi.com/2079-4991/11/10/2645nano-gratingpolarizing beam splittersilicon photonicsintegrated photonics |
| spellingShingle | Haipeng Liu Jijun Feng Jinman Ge Shanqing Zhuang Shuo Yuan Yishu Chen Xiaojun Li Qinggui Tan Qinghua Yu Heping Zeng Tilted Nano-Grating Based Ultra-Compact Broadband Polarizing Beam Splitter for Silicon Photonics Nanomaterials nano-grating polarizing beam splitter silicon photonics integrated photonics |
| title | Tilted Nano-Grating Based Ultra-Compact Broadband Polarizing Beam Splitter for Silicon Photonics |
| title_full | Tilted Nano-Grating Based Ultra-Compact Broadband Polarizing Beam Splitter for Silicon Photonics |
| title_fullStr | Tilted Nano-Grating Based Ultra-Compact Broadband Polarizing Beam Splitter for Silicon Photonics |
| title_full_unstemmed | Tilted Nano-Grating Based Ultra-Compact Broadband Polarizing Beam Splitter for Silicon Photonics |
| title_short | Tilted Nano-Grating Based Ultra-Compact Broadband Polarizing Beam Splitter for Silicon Photonics |
| title_sort | tilted nano grating based ultra compact broadband polarizing beam splitter for silicon photonics |
| topic | nano-grating polarizing beam splitter silicon photonics integrated photonics |
| url | https://www.mdpi.com/2079-4991/11/10/2645 |
| work_keys_str_mv | AT haipengliu tiltednanogratingbasedultracompactbroadbandpolarizingbeamsplitterforsiliconphotonics AT jijunfeng tiltednanogratingbasedultracompactbroadbandpolarizingbeamsplitterforsiliconphotonics AT jinmange tiltednanogratingbasedultracompactbroadbandpolarizingbeamsplitterforsiliconphotonics AT shanqingzhuang tiltednanogratingbasedultracompactbroadbandpolarizingbeamsplitterforsiliconphotonics AT shuoyuan tiltednanogratingbasedultracompactbroadbandpolarizingbeamsplitterforsiliconphotonics AT yishuchen tiltednanogratingbasedultracompactbroadbandpolarizingbeamsplitterforsiliconphotonics AT xiaojunli tiltednanogratingbasedultracompactbroadbandpolarizingbeamsplitterforsiliconphotonics AT qingguitan tiltednanogratingbasedultracompactbroadbandpolarizingbeamsplitterforsiliconphotonics AT qinghuayu tiltednanogratingbasedultracompactbroadbandpolarizingbeamsplitterforsiliconphotonics AT hepingzeng tiltednanogratingbasedultracompactbroadbandpolarizingbeamsplitterforsiliconphotonics |