Highly efficient generation of single-mode photon pairs from a crystalline whispering-gallery-mode resonator source

Published: February 11, 2015


Michael Fortsch, Gerhard Schunk, Josef Furst, Dmitry Strekalov, Thomas Gerrits, Martin J. Stevens, Florian Sedlmeir, Harald G. Schwefel, Gerd Leuchs, Christoph Marquardt


We report on the highly-efficient generation of narrow-band pair-photons in one single spatiotemporal mode using parametric down-conversion in a crystalline whispering gallery mode resonator. We developed the requirements on phase-matching conditions in spheroidal geometries to achieve single-mode operation. Its precise understanding facilitates the realization of the highest reported single-mode pair-detection rate of 0.97 Million pairs/s per mW pump power per 20 MHz bandwidth without the need of additional filter cavities
Citation: Physical Review Letters
Volume: 91
Issue: 2
Pub Type: Journals


squeezing, single photon detectors, quantum optics
Created February 11, 2015, Updated November 10, 2018