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Updated: Jan 28, 2026

Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source
Published on: April 4, 2017
Research on the Hong-Ou-Mandel interference with two independent sources
Si Wang1,2,3, Chen-Xi Liu1,2,3, Jian Li4,5,6
1Institute of Quantum Information and Technology, Nanjing University of Posts and Telecommunications, Nanjing, 210003, China.
Abstract:
In this paper, we carry out investigation on the HOM interference between two independent photons by using interference filters with different bandwidth both in theory and experiment. Our experimental results are consistent with the theoretical predictions. From the experimental and theoretical results, we find that interference filters with a narrower bandwidth can help to give a larger coherence length, due to the broadening of photon wave-packet in the spatial domain, resulting in an higher interference visibility. Furthermore, a combination of interference filters with different bandwidths may help to achieve a nice balance between coincidence counting rate and interference visibility. Our present work might provide valuable reference for further implementation of HOM interference in the field of quantum information.
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