Full characterization of an all fiber source of heralded single photons
Yunxiao Zhang, Liang Cui, Xueshi Guo, Wen Zhao, Xiaoying Li, Z. Y. Ou
TL;DR
This paper presents a comprehensive characterization of a fiber-based heralded single photon source at telecom wavelengths, using photon counting and homodyne detection to evaluate its efficiency, purity, and vacuum contribution.
Contribution
It introduces a fully fiber-integrated heralded single photon source and provides detailed characterization methods and results, advancing practical quantum communication technologies.
Findings
High heralding efficiency achieved
Mode purity quantified through photon counting
Vacuum contribution measured via homodyne detection
Abstract
We demonstrate a heralded single photon source which is based on the photon pairs generated from pulse pumped spontaneous four wave mixing in a piece of commercially available dispersion shifted fiber. The single photon source at 1550 nm telecom band is characterized with both photon counting technique and homodyne detection method. The heralding efficiency and mode purity can be measured by photon counting while the vacuum contribution part can be found by homodyne detection.
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Taxonomy
TopicsAdvanced Optical Sensing Technologies · Advanced Fiber Laser Technologies · Photonic and Optical Devices