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Title: A monolithic polarization-independent frequency-filter system for filtering of photon pairs

We set up a long-term stable filtering system that consists of cascaded monolithic Fabry-Pérot filters to enhance the suppression and free spectral range. An effective free spectral range of hundreds of GHz allows the system to be used as a high resolution monochromator, with a linewidth of 192 MHz. As an important application a single mode is filtered from photon pairs generated by a parametric down-conversion source, and their indistinguishability is proven by measuring the Hong-Ou-Mandel effect with a visibility of 96%. We report that undesired birefringence, which is often encountered with monolithic cavities, can be avoided by stress-free mounting.
Authors:
; ; ;  [1]
  1. Institute of Physics, Humboldt-Universität zu Berlin, Newtonstrasse 15, D-12489 Berlin (Germany)
Publication Date:
OSTI Identifier:
22217747
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 103; Journal Issue: 24; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; BIREFRINGENCE; GHZ RANGE; MHZ RANGE; MONOCHROMATORS; OPTICAL FILTERS; PHOTONS; POLARIZATION; RESOLUTION; STRESSES; VISIBILITY