O
Offir Cohen
Researcher at University of Delaware
Publications - 25
Citations - 877
Offir Cohen is an academic researcher from University of Delaware. The author has contributed to research in topics: Photon & Optical fiber. The author has an hindex of 9, co-authored 25 publications receiving 782 citations. Previous affiliations of Offir Cohen include University of Illinois at Urbana–Champaign & National Institute of Standards and Technology.
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Journal ArticleDOI
Photon pair-state preparation with tailored spectral properties by spontaneous four-wave mixing in photonic-crystal fiber
Karina Garay-Palmett,H. J. McGuinness,Offir Cohen,Jeff S. Lundeen,Raúl Rangel-Rojo,Alfred B. U'Ren,Michael G. Raymer,Colin J. McKinstrie,Stojan Radic,Ian A. Walmsley +9 more
TL;DR: It is shown that it is possible to engineer two-photon states with specific spectral correlation ("entanglement") properties suitable for quantum information processing applications, and which allows heralding of single-Photon pure-state wave packets without the need for spectral post filtering.
Journal ArticleDOI
Tailored Photon-Pair Generation in Optical Fibers
TL;DR: By fabricating fibers with designed dispersion, one can manipulate the photons' wavelengths, joint spectrum, and, thus, entanglement by producing photon pairs with no spectral correlations, allowing direct heralding of single photons in pure-state wave packets without filtering.
Journal ArticleDOI
Photon pair generation in birefringent optical fibers.
TL;DR: The ability to produce a range of two-photon spectral states, from highly correlated (entangled) to completely factorable, by means of cross-polarized birefringent phase matching, is explored.
Journal ArticleDOI
Fast and highly resolved capture of the joint spectral density of photon pairs
TL;DR: In this article, the joint spectral correlations of photon pairs were captured using a stimulated four-wave mixing scheme, which can be used for studying quantum states, making it a powerful tool for studying the quantum states.
Journal ArticleDOI
High-performance single-photon generation with commercial-grade optical fiber
Christoph Söller,Christoph Söller,Offir Cohen,Offir Cohen,Brian J. Smith,Ian A. Walmsley,Christine Silberhorn,Christine Silberhorn +7 more
TL;DR: In this article, a heralded single-photon source based on commercial-grade polarization-maintaining optical fiber is presented, which exhibits a purity of at least 0.84 and an unprecedented heralding efficiency into a single-mode fiber of 85%.