Low-noise single-photon detection at wavelength 1.55 [micro sign]m

2001 ◽  
Vol 37 (17) ◽  
pp. 1081 ◽  
Author(s):  
P.A. Hiskett ◽  
J.M. Smith ◽  
G.S. Buller ◽  
P.D. Townsend
2012 ◽  
Vol 246-247 ◽  
pp. 273-278 ◽  
Author(s):  
Hua Lü

In this paper, we experimentally characterize the Inga As/Imp avalanche photodiode (APD), which is working in Geiger mode, so as to choose the single photon detector for quantum communication. Due to the fact that bias of APD tends to be flat after avalanche, we first adopt the methodology of passive quenching to determine dark breakdown voltage. Experiment results indicate that temperature reduction will widen the optimal operating region and increase the optimal multiplication; therefore APD will be more sensitive. Epitaxial APD is the best choice for single-photon detection among the APDs we have tested for its low noise level and high signal-to-noise ratio (SNR). Finally, we design a mixed passive-active quenching integrated circuit with gate control, which is quick with the quenching time of about 25ns and has controllable dead time with minimum of about 60ns.


2012 ◽  
Vol 112 (6) ◽  
pp. 063106 ◽  
Author(s):  
Nino Walenta ◽  
Tommaso Lunghi ◽  
Olivier Guinnard ◽  
Raphael Houlmann ◽  
Hugo Zbinden ◽  
...  

2019 ◽  
Vol 27 (25) ◽  
pp. 36114
Author(s):  
Meng Yang ◽  
Feihu Xu ◽  
Ji-Gang Ren ◽  
Juan Yin ◽  
Yang Li ◽  
...  

2015 ◽  
Vol 23 (25) ◽  
pp. 31857 ◽  
Author(s):  
Lin Zhao ◽  
Kun Huang ◽  
Yan Liang ◽  
Jie Chen ◽  
Xueshun Shi ◽  
...  

Instruments ◽  
2021 ◽  
Vol 5 (2) ◽  
pp. 18
Author(s):  
Fabio Acerbi ◽  
Anurag Behera ◽  
Alberto Dalla Mora ◽  
Laura Di Sieno ◽  
Alberto Gola

Silicon photomultipliers (SiPM) are pixelated single-photon detectors combining high sensitivity, good time resolution and high dynamic range. They are emerging in many fields, such as time-domain diffuse optics (TD-DO). This is a promising technique in neurology, oncology, and quality assessment of food, wood, and pharmaceuticals. SiPMs can have very large areas and can significantly increase the sensitivity of TD-DO in tissue investigation. However, such improvement is currently limited by the high detector noise and the worsening of SiPM single-photon time resolution due to the large parasitic capacitances. To overcome such limitation, in this paper, we present two single-photon detection modules, based on 6 × 6 mm2 and 10 × 10 mm2 SiPMs, housed in vacuum-sealed TO packages, cooled to −15 °C and −36 °C, respectively. They integrate front-end amplifiers and temperature controllers, being very useful instruments for TD-DO and other biological and physical applications. The signal extraction from the SiPM was improved. The noise is reduced by more than two orders of magnitude compared to the room temperature level. The full suitability of the proposed detectors for TD-DO measurements is outside the scope of this work, but preliminary tests were performed analyzing the shape and the stability of the Instrument Response Function. The proposed modules are thus fundamental building blocks to push the TD-DO towards deeper investigations inside the body.


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