Telecom C-band photon-pair generation using standard SMF-28 fiber
نویسندگان
چکیده
Photon-pair generation must satisfy both the energy conservation and phase-matching conditions with a specific pump wavelength dispersion of nonlinear optical medium, but finding photon-pair, which has desired wavelength, medium is challenging. Here, we present method to create photon pairs that functions efficiently even much larger than zero GVD medium. In this study, employ short SMF-28 fibers having ~1310 nm C-band (1552.52 nm) generate pairs. The measured pair rate coincidence-to-accidental ratios are comparable those from long dispersion-shifted fiber. Polarization-entangled states prepared, an S value 2.659 +- 0.094 achieved Bell inequality measurements. Our results indicate use SFWM yields adequate photon-pair rates regardless its properties in almost any material at wavelength.
منابع مشابه
Ultra stable all-fiber telecom-band entangled photon-pair source for turnkey quantum communication applications.
We demonstrate a novel alignment-free all-fiber source for generating telecom-band polarization-entangled photon pairs. Polarization entanglement is created by injecting two relatively delayed, orthogonally polarized pump pulses into a piece of dispersion-shifted fiber, where each one independently engages in four-photon scattering, and then removing any distinguishability between the correlate...
متن کاملAll-fiber photon-pair source at telecom wavelengths
Single photon sources are a key element for quantum computing, quantum key distribution (QKD) and quantum communications. In particular, producing single photons at telecommunications wavelengths is valuable for QKD protocols and would enable realizing the quantum internet. The preferred method for their generation has long been spontaneous down conversion in bulk crystals, which suffers from c...
متن کاملTelecom-band degenerate-frequency photon pair generation in silicon microring cavities.
In this Letter, telecom-band degenerate-frequency photon pairs are generated in a specific mode of a silicon microring cavity by the nondegenerate spontaneous four-wave mixing (SFWM) process, under two continuous-wave pumps at resonance wavelength of two different cavity modes. The ratio of coincidence to accidental coincidence is up to 100 under a time bin width of 5 ns, showing their characte...
متن کاملCW-pumped telecom band polarization entangled photon pair generation in a Sagnac interferometer.
Polarization entangled photon pair source is widely used in many quantum information processing applications such as teleportation, quantum communications, quantum computation and high precision quantum metrology. We report on the generation of a continuous-wave pumped 1550 nm polarization entangled photon pair source at telecom wavelength using a type-II periodically poled KTiOPO(4) (PPKTP) cr...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Optics Communications
سال: 2021
ISSN: ['1873-0310', '0030-4018']
DOI: https://doi.org/10.1016/j.optcom.2020.126692