| WANG Shuai,LU Wenda,LAI Xiaohan,WANG Hong,ZHU Lianqing,LU Lidan.Silicon waveguide-based single cavity Fano resonance temperature sensor[J].Optoelectronics Letters,2023,(3):139-143 |
| Silicon waveguide-based single cavity Fano resonance temperature sensor |
| Author Name | Affiliation | | WANG Shuai | Key Laboratory of the Ministry of Education for Optoelectronic Measurement Technology and Instrument, Beijing Information Science and Technology University, Beijing 100059, China | | LU Wenda | Key Laboratory of the Ministry of Education for Optoelectronic Measurement Technology and Instrument, Beijing Information Science and Technology University, Beijing 100059, China | | LAI Xiaohan | Key Laboratory of the Ministry of Education for Optoelectronic Measurement Technology and Instrument, Beijing Information Science and Technology University, Beijing 100059, China | | WANG Hong | Key Laboratory of the Ministry of Education for Optoelectronic Measurement Technology and Instrument, Beijing Information Science and Technology University, Beijing 100059, China | | ZHU Lianqing | Key Laboratory of the Ministry of Education for Optoelectronic Measurement Technology and Instrument, Beijing Information Science and Technology University, Beijing 100059, China | | LU Lidan | Key Laboratory of the Ministry of Education for Optoelectronic Measurement Technology and Instrument, Beijing Information Science and Technology University, Beijing 100059, China |
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| Abstract: |
| A compact Fano resonant temperature sensor composed of a micro-ring resonator (MRR) coupled double-T-shaped waveguide is developed. The coupling gap and coefficient of the device are optimized by the finite difference time domain (FDTD) method. The maximum slope ratio (SR) of the MRR-coupled single-T-shaped waveguide is ?2.13 dB/nm. The SR of the double-T-shaped waveguide is ?49.69 dB/nm which is 23 times that of the single-T-shaped waveguide. The simulation results show that the temperature sensitivity of optical intensity decreases with increasing temperature in the range from 303.6 K to 343.8 K. The wavelength-temperature sensitivity of the double-T-shaped waveguide microring is 76.5 pm/K. After introducing the double-T-shaped waveguide structure, the device's performance is greatly improved, and the double-T-shaped waveguide has a good application prospect as a temperature sensor. |
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