Crosstalk Analysis of SiC Ultraviolet Single Photon Avalanche Photodiode Arrays
Optical crosstalk is one of major problems limiting the performance of focal plane arrays based on single photon avalanche diodes (SPADs). In this work, for the first time the crosstalk characteristics of a 4H-SiC SPAD linear array are studied, which is based on a real-time dual channel data acquisi...
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| Format: | Article |
| Language: | English |
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IEEE
2019-01-01
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| Series: | IEEE Photonics Journal |
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| Online Access: | https://ieeexplore.ieee.org/document/8903548/ |
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| author | Heng Zhang Linlin Su Dong Zhou Weizong Xu Fangfang Ren Dunjun Chen Rong Zhang Youdou Zheng Hai Lu |
| author_facet | Heng Zhang Linlin Su Dong Zhou Weizong Xu Fangfang Ren Dunjun Chen Rong Zhang Youdou Zheng Hai Lu |
| author_sort | Heng Zhang |
| collection | DOAJ |
| description | Optical crosstalk is one of major problems limiting the performance of focal plane arrays based on single photon avalanche diodes (SPADs). In this work, for the first time the crosstalk characteristics of a 4H-SiC SPAD linear array are studied, which is based on a real-time dual channel data acquisition method. It is found that SiC SPAD array exhibits similar crosstalk probability compared with those of InGaAs-based SPAD arrays, which can be effectively reduced by trench isolation between adjacent pixels or by lowering overbias. The average time required for forming a crosstalk event is determined between 7 and 10 ns. As a result, active time-gated operation scheme can be applied for reducing crosstalk. |
| format | Article |
| id | doaj-art-bde2f959772640d395e2f499f4bbd2de |
| institution | DOAJ |
| issn | 1943-0655 |
| language | English |
| publishDate | 2019-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Photonics Journal |
| spelling | doaj-art-bde2f959772640d395e2f499f4bbd2de2025-08-20T03:14:53ZengIEEEIEEE Photonics Journal1943-06552019-01-011161810.1109/JPHOT.2019.29541198903548Crosstalk Analysis of SiC Ultraviolet Single Photon Avalanche Photodiode ArraysHeng Zhang0https://orcid.org/0000-0003-1414-2555Linlin Su1Dong Zhou2Weizong Xu3Fangfang Ren4Dunjun Chen5Rong Zhang6Youdou Zheng7Hai Lu8https://orcid.org/0000-0002-9835-6763School of Electronic Science and Engineering, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, ChinaSchool of Electronic Science and Engineering, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, ChinaSchool of Electronic Science and Engineering, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, ChinaSchool of Electronic Science and Engineering, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, ChinaSchool of Electronic Science and Engineering, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, ChinaSchool of Electronic Science and Engineering, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, ChinaSchool of Electronic Science and Engineering, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, ChinaSchool of Electronic Science and Engineering, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, ChinaSchool of Electronic Science and Engineering, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, ChinaOptical crosstalk is one of major problems limiting the performance of focal plane arrays based on single photon avalanche diodes (SPADs). In this work, for the first time the crosstalk characteristics of a 4H-SiC SPAD linear array are studied, which is based on a real-time dual channel data acquisition method. It is found that SiC SPAD array exhibits similar crosstalk probability compared with those of InGaAs-based SPAD arrays, which can be effectively reduced by trench isolation between adjacent pixels or by lowering overbias. The average time required for forming a crosstalk event is determined between 7 and 10 ns. As a result, active time-gated operation scheme can be applied for reducing crosstalk.https://ieeexplore.ieee.org/document/8903548/SiCSPAD arrayultravioletcrosstalk. |
| spellingShingle | Heng Zhang Linlin Su Dong Zhou Weizong Xu Fangfang Ren Dunjun Chen Rong Zhang Youdou Zheng Hai Lu Crosstalk Analysis of SiC Ultraviolet Single Photon Avalanche Photodiode Arrays IEEE Photonics Journal SiC SPAD array ultraviolet crosstalk. |
| title | Crosstalk Analysis of SiC Ultraviolet Single Photon Avalanche Photodiode Arrays |
| title_full | Crosstalk Analysis of SiC Ultraviolet Single Photon Avalanche Photodiode Arrays |
| title_fullStr | Crosstalk Analysis of SiC Ultraviolet Single Photon Avalanche Photodiode Arrays |
| title_full_unstemmed | Crosstalk Analysis of SiC Ultraviolet Single Photon Avalanche Photodiode Arrays |
| title_short | Crosstalk Analysis of SiC Ultraviolet Single Photon Avalanche Photodiode Arrays |
| title_sort | crosstalk analysis of sic ultraviolet single photon avalanche photodiode arrays |
| topic | SiC SPAD array ultraviolet crosstalk. |
| url | https://ieeexplore.ieee.org/document/8903548/ |
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