Silicon-on-Insulator Waveguide Devices for Broadband Mid-Infrared Photonics
In this paper, we demonstrate silicon-on-insulator (SOI) channel waveguides with propagation loss and <inline-formula><tex-math notation="LaTeX">$r$</tex-math></inline-formula> = 10 <inline-formula> <tex-math notation="LaTeX">$\mu$&l...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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IEEE
2017-01-01
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| Series: | IEEE Photonics Journal |
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| Online Access: | https://ieeexplore.ieee.org/document/7914632/ |
| _version_ | 1818566696702574592 |
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| author | Bowei Dong Xin Guo Chong Pei Ho Bo Li Hong Wang Chengkuo Lee Xianshu Luo Guo-Qiang Lo |
| author_facet | Bowei Dong Xin Guo Chong Pei Ho Bo Li Hong Wang Chengkuo Lee Xianshu Luo Guo-Qiang Lo |
| author_sort | Bowei Dong |
| collection | DOAJ |
| description | In this paper, we demonstrate silicon-on-insulator (SOI) channel waveguides with propagation loss and <inline-formula><tex-math notation="LaTeX">$r$</tex-math></inline-formula> = 10 <inline-formula> <tex-math notation="LaTeX">$\mu$</tex-math></inline-formula><inline-formula><tex-math notation="LaTeX">$\text{m}$ </tex-math></inline-formula> bends with bending loss as low as 2 dB/cm and 0.02 dB/90<inline-formula> <tex-math notation="LaTeX">$^{\circ }$</tex-math></inline-formula> in the broad wavelength range of 3.68–3.88 <inline-formula><tex-math notation="LaTeX">$\mu$</tex-math></inline-formula><inline-formula> <tex-math notation="LaTeX">$\text{m}$</tex-math></inline-formula>. We also indicate the limitation of SOI waveguide loss in mid-infrared wavelength by analyzing loss mechanisms. Based on this high-performance mid-infrared waveguide, we systematically analyze the coupling efficiency of various directional couplers, which are critical and commonly used building blocks for on-chip light routing and power splitting. By varying coupling length and sweeping wavelength, the performance of directional coupler with various gap separations is meticulously investigated in 3.68–3.88 <inline-formula><tex-math notation="LaTeX">$\mu$</tex-math></inline-formula><inline-formula> <tex-math notation="LaTeX">$\text{m}$</tex-math></inline-formula>. A experimental database for directional coupler with any power splitting ratio is provided. Our results offer a promising broadband platform for dense wavelength division multiplexing (DWDM) and applications that require precise control of coupling such as racetrack resonator in the mid-infrared region. |
| first_indexed | 2024-12-14T01:56:55Z |
| format | Article |
| id | doaj.art-40d050e68b424f72933c03312f050cb2 |
| institution | Directory Open Access Journal |
| issn | 1943-0655 |
| language | English |
| last_indexed | 2024-12-14T01:56:55Z |
| publishDate | 2017-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Photonics Journal |
| spelling | doaj.art-40d050e68b424f72933c03312f050cb22022-12-21T23:21:10ZengIEEEIEEE Photonics Journal1943-06552017-01-019311010.1109/JPHOT.2017.26920397914632Silicon-on-Insulator Waveguide Devices for Broadband Mid-Infrared PhotonicsBowei Dong0Xin Guo1Chong Pei Ho2Bo Li3Hong Wang4Chengkuo Lee5Xianshu Luo6Guo-Qiang Lo7Institute of Microelectronics, Agency for Science, Technology and Research (A*STAR), Innovis, Singapore138634School of Electrical & Electronic Engineering, Nanyang Technological University, SingaporeDepartment of Electrical and Computer Engineering, National University of Singapore, SingaporeDepartment of Electrical and Computer Engineering, National University of Singapore, SingaporeSchool of Electrical & Electronic Engineering, Nanyang Technological University, SingaporeDepartment of Electrical and Computer Engineering, National University of Singapore, SingaporeInstitute of Microelectronics, Agency for Science, Technology and Research (A*STAR), Innovis, Singapore138634Institute of Microelectronics, Agency for Science, Technology and Research (A*STAR), Innovis, Singapore138634In this paper, we demonstrate silicon-on-insulator (SOI) channel waveguides with propagation loss and <inline-formula><tex-math notation="LaTeX">$r$</tex-math></inline-formula> = 10 <inline-formula> <tex-math notation="LaTeX">$\mu$</tex-math></inline-formula><inline-formula><tex-math notation="LaTeX">$\text{m}$ </tex-math></inline-formula> bends with bending loss as low as 2 dB/cm and 0.02 dB/90<inline-formula> <tex-math notation="LaTeX">$^{\circ }$</tex-math></inline-formula> in the broad wavelength range of 3.68–3.88 <inline-formula><tex-math notation="LaTeX">$\mu$</tex-math></inline-formula><inline-formula> <tex-math notation="LaTeX">$\text{m}$</tex-math></inline-formula>. We also indicate the limitation of SOI waveguide loss in mid-infrared wavelength by analyzing loss mechanisms. Based on this high-performance mid-infrared waveguide, we systematically analyze the coupling efficiency of various directional couplers, which are critical and commonly used building blocks for on-chip light routing and power splitting. By varying coupling length and sweeping wavelength, the performance of directional coupler with various gap separations is meticulously investigated in 3.68–3.88 <inline-formula><tex-math notation="LaTeX">$\mu$</tex-math></inline-formula><inline-formula> <tex-math notation="LaTeX">$\text{m}$</tex-math></inline-formula>. A experimental database for directional coupler with any power splitting ratio is provided. Our results offer a promising broadband platform for dense wavelength division multiplexing (DWDM) and applications that require precise control of coupling such as racetrack resonator in the mid-infrared region.https://ieeexplore.ieee.org/document/7914632/Integrated optics materialswaveguidesmid infraredphotonic integrated circuits. |
| spellingShingle | Bowei Dong Xin Guo Chong Pei Ho Bo Li Hong Wang Chengkuo Lee Xianshu Luo Guo-Qiang Lo Silicon-on-Insulator Waveguide Devices for Broadband Mid-Infrared Photonics IEEE Photonics Journal Integrated optics materials waveguides mid infrared photonic integrated circuits. |
| title | Silicon-on-Insulator Waveguide Devices for Broadband Mid-Infrared Photonics |
| title_full | Silicon-on-Insulator Waveguide Devices for Broadband Mid-Infrared Photonics |
| title_fullStr | Silicon-on-Insulator Waveguide Devices for Broadband Mid-Infrared Photonics |
| title_full_unstemmed | Silicon-on-Insulator Waveguide Devices for Broadband Mid-Infrared Photonics |
| title_short | Silicon-on-Insulator Waveguide Devices for Broadband Mid-Infrared Photonics |
| title_sort | silicon on insulator waveguide devices for broadband mid infrared photonics |
| topic | Integrated optics materials waveguides mid infrared photonic integrated circuits. |
| url | https://ieeexplore.ieee.org/document/7914632/ |
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