Gerrits, Thomas, Thomas-Peter, Nicholas, Gates, James C., Lita, Adriana E., Metcalf, Benjamin J., Calkins, Brice, Tomlin, Nathan A., Fox, Anna E., Linares, Antia Lamas, Spring, Justin B., Langford, Nathan K., Mirin, Richard P., Smith, Peter G. R., Walmsley, Ian A. and Nam, Sae Woo (2011) On-chip, photon-number-resolving, telecommunication-band detectors for scalable photonic information processing. Physical Review A, 84 (6).
Full text access: Open
Integration is currently the only feasible route toward 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 five 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 +/- 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.
This is a Submitted version This version's date is: 5/12/2011 This item is not peer reviewed
https://repository.royalholloway.ac.uk/items/af39af5a-c3ac-1ddc-4fb0-b3c3577a82bf/2/
Deposited by Research Information System (atira) on 27-Jan-2013 in Royal Holloway Research Online.Last modified on 27-Jan-2013