PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.
High count rates (10’s to 100’s to 1000’s of MHz) and very precise timing (10’s of ps FWHM jitter or less) are two of the features which make superconducting nanowire single-photon detectors a revolutionary experimental and engineering tool. Both of these performance metrics also depend on the device bias current level. The maximum count rate is determined by how soon after detection the bias current recharges to the level required for maximum efficiency, while the timing jitter decreases with increased bias current even beyond level which yields maximum efficiency. For a device with a strong detection efficiency plateau, the bias current recharge can push the device into the regime of maximum efficiency at a fractional level of the current required to achieve the desired jitter. Here, we present an experimental analysis of this effect. These results should enable users to consider the trade-off between count rate and timing jitter for various experiments.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.
The alert did not successfully save. Please try again later.
Timothy M. Rambo, Jeremy Doredla, Hudson Jones, Leo Oshiro, Stephanie Boyd, Aaron J. Miller, "Investigating the impact of fast count rates on timing jitter in SNSPDs," Proc. SPIE 12570, Quantum Optics and Photon Counting 2023, 125700A (6 June 2023); https://doi.org/10.1117/12.2670353