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|Author(s):||Thomas Gerrits; Martin J. Stevens; Burm Baek; Brice R. Calkins; Adriana E. Lita; Scott C. Glancy; Emanuel H. Knill; Sae Woo Nam; Richard P. Mirin; Robert Hadfield; Ryan Bennink; Warren Grice; Sander N. Dorenbos; Tony Zijlstra; Teun Klapwijk; Val Zwiller;|
|Title:||Generation and characterization of high-purity, pulsed squeezed light at telecom wavelengths from pp-KTP|
|Published:||November 15, 2011|
|Abstract:||We characterize a pp-KTP crystal designed to produce pure single mode squeezed vacuum at 1570 nm. Measurements show a raw (corrected) Hong-Ou-Mandel interference with 86 % (90 %) visibility and a circular joint spectral probability distribution with a Schmidt number of 1.08 when spectral filtering with 8.6 nm bandwidth is applied. We use superconducting nanowire single photon detectors to measure the joint spectral probability distribution, and use photon-number resolving transition edge sensors to perform Hong-Ou-Mandel interference experiments. Both types of detectors are used to measure second-order correlations: the nanowire detectors with time-domain histogramming, and the transition edge sensors by measuring photon number statistics. Results from these two very different techniques are in good agreement.|
|Pages:||pp. 24434 - 24447|
|Keywords:||homodyne detection, optical cat states, periodic poling, quantum information, squeezing, transition edge sensors|
|Research Areas:||Single Photon Detectors, Entangled Photons, Single Photon Sources, Squeezing, Physics|
|PDF version:||Click here to retrieve PDF version of paper (1MB)|