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Spectrally Bright and Broad Fiber-Based Heralded Single-Photon Source

Elizabeth A. Goldschmidt, Matthew D. Eisaman, Jingyun Fan +3 more

We report the development of a spectrally bright and broad heralded single-photon source based on spontaneous four-wave-mixing in a single-mode fiber, measuring the second-order correlation function, g(2)(0), far below unity over a broad spectral range.

International Conference on Quantum InformationJan 1, 20083 citations

Tunable fiber source of entangled UV-C and infrared photons

Santiago Lopez-Huidobro, Mohammad Noureddin, Maria V. Chekhova +1 more

Pairs of entangled photons-biphotons-are indispensable in quantum applications. However, some important spectral ranges, like the ultraviolet, have been inaccessible to them so far. Here, we use four-wave mixing in a xenon-filled single-ring photonic crystal fiber to generate biphotons with one of the photons in the ultraviolet and its entangled partner in the infrared spectral range. We tune the biphotons in frequency by varying the gas pressure inside the fiber and thus tailoring the fiber dispersion landscape. The ultraviolet photons are tunable from 271 nm to 231 nm and their entangled partners, from 764 nm to 1500 nm, respectively. Tunability up to 192 THz is achieved by adjusting the gas pressure by only 0.68 bar. At 1.43 bar, the photons of a pair are separated by more than 2 octaves. The access to ultraviolet wavelengths opens the possibility for spectroscopy and sensing with undetected photons in this spectral range.Pairs of entangled photons-biphotons-are indispensable in quantum applications. However, some important spectral ranges, like the ultraviolet, have been inaccessible to them so far. Here, we use four-wave mixing in a xenon-filled single-ring photonic crystal fiber to generate biphotons with one of the photons in the ultraviolet and its entangled partner in the infrared spectral range. We tune the biphotons in frequency by varying the gas pressure inside the fiber and thus tailoring the fiber dispersion landscape. The ultraviolet photons are tunable from 271 nm to 231 nm and their entangled partners, from 764 nm to 1500 nm, respectively. Tunability up to 192 THz is achieved by adjusting the gas pressure by only 0.68 bar. At 1.43 bar, the photons of a pair are separated by more than 2 octaves. The access to ultraviolet wavelengths opens the possibility for spectroscopy and sensing with undetected photons in this spectral range.

arXiv:2302.07798Optics LettersJun 6, 20235 citations

Tunable liquid-crystal source of photon pairs

Vitaliy Sultanov, Aljaž Kavčič, Manolis Kokkinakis +2 more

We demonstrate a liquid-crystal broadband source of entangled photons, whose flux and polarization are tunable through the electric field or molecular twist. This opens a path to a new generation of tunable quantum light sources.

Jan 1, 20240 citations

Production of Entangled Photon Pairs in Optical Fiber via Four-Wave Mixing

Joshua A. Slater, Ahdiyeh Delfan Abazari, Allison Rubenok +3 more

Bulletin of the American Physical SocietyJun 7, 20070 citations

Fiber-based biphoton source with ultrabroad frequency tunability

Santiago Lopez-Huidobro, Markus Lippl, Nicolas Y. Joly +1 more

Tunable biphotons are highly important for a wide range of quantum applications. For some applications, especially interesting are cases where two photons of a pair are far apart in frequency. Here, we report a tunable biphoton source based on a xenon-filled hollow-core photonic crystal fiber. Tunability is achieved by adjusting the pressure of the gas inside the fiber. This allows us to tailor the dispersion landscape of the fiber, overcoming the principal limitations of solid-core fiber-based biphoton sources. We report a maximum tunability of 120 THz for a pressure range of 4 bar with a continuous shift of 30 THz/bar. At 21 bar, the photons of a pair are separated by more than one octave. Despite the large separation, both photons have large bandwidths. At 17 bar, they form a very broad (110 THz) band around the frequency of the pump.Tunable biphotons are highly important for a wide range of quantum applications. For some applications, especially interesting are cases where two photons of a pair are far apart in frequency. Here, we report a tunable biphoton source based on a xenon-filled hollow-core photonic crystal fiber. Tunability is achieved by adjusting the pressure of the gas inside the fiber. This allows us to tailor the dispersion landscape of the fiber, overcoming the principal limitations of solid-core fiber-based biphoton sources. We report a maximum tunability of 120 THz for a pressure range of 4 bar with a continuous shift of 30 THz/bar. At 21 bar, the photons of a pair are separated by more than one octave. Despite the large separation, both photons have large bandwidths. At 17 bar, they form a very broad (110 THz) band around the frequency of the pump.

arXiv:2106.10208Optics LettersJul 19, 202110 citations

Entangled state engineering in single-mode fibers

Joseph B. Altepeter, Jun Chen, Prem Kumar

We present novel designs for fiber-based sources of entangled photon pairs, and investigate the increasing number of available options for quantum-state engineering in the telecom band using four-wave mixing in standard fibers.

International Conference on Quantum InformationJan 1, 20082 citations

Tunable Fiber Source of Entangled Ultraviolet and Infrared Photons

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Tunable Fiber Source of Entangled Ultraviolet and Infrared Photons

Abstract

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