Evaluating the resolution-efficiency trade-off of optical Kerr gating via biphoton temporal correlation measurements

作者：T. Kuwana, Masahiro Yabuno, Hirotaka Terai, Shigehito Miki, Peter J. Mosley, Rui‐Bo Jin, Ryōsuke Shimizu · 发表于：Japanese Journal of Applied Physics · 年份：2026 · DOI：10.35848/1347-4065/ae7da9 · 研究领域：Advanced Optical Sensing Technologies、Quantum Information and Cryptography、Random lasers and scattering media

Abstract Fiber-based optical Kerr gating is a promising technique for ultrafast single-photon detection. While a fundamental trade-off between temporal resolution and detection efficiency has been anticipated, its experimental verification has remained elusive due to the lack of a suitable platform. In this study, we demonstrate the unexplored trade-off relationship using a highly efficient optical Kerr-gating system based on a photonic crystal fiber. Our results elucidate the inherent constraints governing the trade-off, providing a critical foundation for the future design and optimization of ultrafast single-photon detection.