Miniaturized free-running InGaAs/InP single-photon detector (<i>invited</i>)

Lianjun Jiang; Yuqiang Fang; Chao Yu; Qi Xu; Xuefeng Wang; Rui Ma; Xianchang Du; Ming Liu; Ta Wei; Chuancheng Huang; Yukang Zhao; Junsheng Liang; Xiang Shang; Guoliang Shentu; Lin Yu; Shibiao Tang; Jun Zhang

doi:10.3788/IRLA20230017

Infrared and Laser Engineering, Volume. 52, Issue 3, 20230017(2023)

Miniaturized free-running InGaAs/InP single-photon detector (invited)

Lianjun Jiang¹, Yuqiang Fang^1、*, Chao Yu², Qi Xu², Xuefeng Wang¹, Rui Ma¹, Xianchang Du¹, Ming Liu¹, Ta Wei¹, Chuancheng Huang¹, Yukang Zhao¹, Junsheng Liang³, Xiang Shang³, Guoliang Shentu³, Lin Yu¹, Shibiao Tang¹, and Jun Zhang²

Author Affiliations

¹QuantumCTek Co., Ltd., Hefei 230088, China

²CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei 230026, China

³Shandong Guoyao Quantum Lidar Technology Co. Ltd., Jinan 250102, China

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Fig. 1. Scheme of free-running single-photon detection basic circuit

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Fig. 2. Schematic diagram of bias control and current detection circuit

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Fig. 3. Schematic diagram of cooling temperature control circuit

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Fig. 4. Schematic diagram of TDC design based on carry chain delay

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Fig. 5. (a) Product explosion ；(b) Appearance

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Fig. 6. Detection efficiency-dark count rate curve

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Fig. 7. Detection efficiency-time jitter curve

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Fig. 8. LiDAR product using QCD600 series single-photon detector

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Fig. 9. Comparison of LiDAR data before and after correction

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Table 1. Detection efficiency at different wavelengths
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Table 1. Detection efficiency at different wavelengths
Wavelength/nm Detection efficiency
1550 25%
1310 35%
1064 33%

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Lianjun Jiang, Yuqiang Fang, Chao Yu, Qi Xu, Xuefeng Wang, Rui Ma, Xianchang Du, Ming Liu, Ta Wei, Chuancheng Huang, Yukang Zhao, Junsheng Liang, Xiang Shang, Guoliang Shentu, Lin Yu, Shibiao Tang, Jun Zhang. Miniaturized free-running InGaAs/InP single-photon detector (invited)[J]. Infrared and Laser Engineering, 2023, 52(3): 20230017

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