TY - JOUR
T1 - Tailored photon-pair generation in optical fibers
AU - Cohen, Offir
AU - Lundeen, Jeff S.
AU - Smith, Brian J.
AU - Puentes, Graciana
AU - Mosley, Peter J.
AU - Walmsley, Ian A.
PY - 2009/3/23
Y1 - 2009/3/23
N2 - We experimentally control the spectral structure of photon pairs created via spontaneous four-wave mixing in microstructured fibers. By fabricating fibers with designed dispersion, one can manipulate the photons' wavelengths, joint spectrum, and, thus, entanglement. As an example, we produce photon pairs with no spectral correlations, allowing direct heralding of single photons in pure-state wave packets without filtering. We achieve an experimental purity of (85.9±1.6)%, while theoretical analysis and preliminary tests suggest that 94.5% purity is possible with a much longer fiber.
AB - We experimentally control the spectral structure of photon pairs created via spontaneous four-wave mixing in microstructured fibers. By fabricating fibers with designed dispersion, one can manipulate the photons' wavelengths, joint spectrum, and, thus, entanglement. As an example, we produce photon pairs with no spectral correlations, allowing direct heralding of single photons in pure-state wave packets without filtering. We achieve an experimental purity of (85.9±1.6)%, while theoretical analysis and preliminary tests suggest that 94.5% purity is possible with a much longer fiber.
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U2 - 10.1103/PhysRevLett.102.123603
DO - 10.1103/PhysRevLett.102.123603
M3 - Article
C2 - 19392276
AN - SCOPUS:64149115055
SN - 0031-9007
VL - 102
JO - Physical review letters
JF - Physical review letters
IS - 12
M1 - 123603
ER -