On-chip, photon-number-resolving, telecom-band detectors for scalable photonic information processing
Abstract
Integration is currently the only feasible route towards scalable photonic quantum processing devices that are sufficiently complex to be genuinely useful in computing, metrology, and simulation. Embedded on-chip detection will be critical to such devices. We demonstrate an integrated photon-number resolving detector, operating in the telecom band at 1550 nm, employing an evanescently coupled design that allows it to be placed at arbitrary locations within a planar circuit. Up to 5 photons are resolved in the guided optical mode via absorption from the evanescent field into a tungsten transition-edge sensor. The detection efficiency is 7.2 \pm 0.5 %. The polarization sensitivity of the detector is also demonstrated. Detailed modeling of device designs shows a clear and feasible route to reaching high detection efficiencies.
Keywords
Cite
@article{arxiv.1107.5557,
title = {On-chip, photon-number-resolving, telecom-band detectors for scalable photonic information processing},
author = {Thomas Gerrits and Nicholas Thomas-Peter and James C. Gates and Adriana E. Lita and Benjamin J. Metcalf and Brice Calkins and Nathan A. Tomlin and Anna E. Fox and Antía Lamas Linares and Justin B. Spring and Nathan K. Langford and Richard P. Mirin and Peter G. R. Smith and Ian A. Walmsley and Sae Woo Nam},
journal= {arXiv preprint arXiv:1107.5557},
year = {2011}
}