Optical bias and cryogenic laser readout of a multipixel superconducting nanowire single photon detector

被引:0
|
作者
Thiele, Frederik [1 ,2 ]
Lamberty, Niklas [2 ]
Hummel, Thomas [1 ]
Bartley, Tim [1 ,2 ]
机构
[1] Paderborn Univ, Inst Photon Quantum Syst PhoQS, Warburger Str 100, Paderborn, Germany
[2] Paderborn Univ, Dept Phys, Warburger Str 100, Paderborn, Germany
关键词
SYSTEM; OUTPUT; INPUT; ARRAY;
D O I
10.1063/5.0209458
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
Cryogenic opto-electronic interconnects are gaining increasing interest as a means to control and readout cryogenic electronic components. The challenge is to achieve sufficient signal integrity with low heat load processing. In this context, we demonstrate the opto-electronic bias and readout of a commercial four-pixel superconducting nanowire single-photon detector array using a cryogenic photodiode and laser. We show that this approach has a similar system detection efficiency to a conventional bias. Furthermore, multi-pixel detection events are faithfully converted between the optical and electrical domains, which allows reliable extraction of amplitude multiplexed photon statistics. Our device has a latent heat load of 2.6 mW, maintains a signal rise time of 3 ns, and operates in free-running (self-resetting) mode at a repetition rate of 600 kHz. This demonstrates the potential of high-bandwidth, low noise, and low heat load opto-electronic interconnects for scalable cryogenic signal processing and transmission.
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页数:8
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