Quantum sensing using thermal photon bunching

Peng Kian Tan; Xi Jie Yeo; Li Jiong Shen; Christian Kurtsiefer

doi:10.1117/12.2592964

1 August 2021 Quantum sensing using thermal photon bunching

Peng Kian Tan, Xi Jie Yeo, Li Jiong Shen, Christian Kurtsiefer

Author Affiliations +

Proceedings Volume 11835, Quantum Communications and Quantum Imaging XIX; 118350C (2021) https://doi.org/10.1117/12.2592964
Event: SPIE Optical Engineering + Applications, 2021, San Diego, California, United States

Abstract

Classical sensing techniques such as range finding and clock synchronization use timing modulated light sources to provide the timing correlations needed for their implementation. Corresponding quantum schemes utilise spontaneous parametric down converted light sources to provide the timing correlations without the need for timing modulation, although entangled states are too fragile to be fully exploited presently. Here we demonstrate the use of thermal light as an alternative source for timing correlations, via the photon bunching generated from a laser operating below threshold, and showcase its practical viability by successful range finding measurements.

Conference Presentation

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Peng Kian Tan, Xi Jie Yeo, Li Jiong Shen, and Christian Kurtsiefer "Quantum sensing using thermal photon bunching", Proc. SPIE 11835, Quantum Communications and Quantum Imaging XIX, 118350C (1 August 2021); https://doi.org/10.1117/12.2592964

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