Scalable cryogenic readout circuit for a superconducting nanowire single-photon detector system
Abstract
The superconducting nanowire single-photon detector (SNSPD) is a leading technology for quantum information science applications using photons, and is finding increasing uses in photon-starved classical imaging applications. Critical detector characteristics, such as timing resolution (jitter), reset time, and maximum count rate, are heavily influenced by the readout electronics that sense and amplify the photon detection signal. We describe a readout circuit for SNSPDs using commercial off-the-shelf amplifiers operating at cryogenic temperatures. Our design demonstrates a 35 ps timing resolution and a maximum count rate of over 2 × 107 counts per second, while maintaining <3 mW power consumption per channel, making it suitable for a multichannel readout.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Jun 01, 2018
- Source ID
- 10.1063/1.5018179
Entities
People
- Clinton Cahall
- Daniel J Gauthier
- Jungsang Kim
Organizations
- Duke University
- IONQ
- National Aeronautics and Space Administration
- Office of Naval Research
- Ohio State University