Multiplexed Superconducting Nanowire Single‐Photon Detectors on UV‐Written Silica Waveguides
10:05 - 10:25
Devin Hugh Smith, David S. Phillips, Paolo Mennea, Varun B. Verma, Adriana Lita, Thomas Gerrits, Richard P. Mirin, Rex H.S. Bannerman, Paul C. Gow, Jelmer Renema, Robert J.A. Francis-Jones, Raj B. Patel, Santiago Sempere-Llagostena, Peter G.R. Smith, Sae Woo Nam, Ian A. Walmsley and James C. Gates We report the first superconducting nanowire single-photon detectors (SNSPD) on an integrated silica platform. Four WSi detectors were deposited atop each of a set of waveguides inscribed by direct-UV writing, each providing a weak measurement of the guided mode. The detectors operated with a jitter of about 200 ps and a dead time of 180 ns, while the detectors each detected approximately 0.12% of the passing light with a dark count rate of 0.4/s operating at 1550 nm.
