Open AccessObservation of quantum interference between a single-photon state and a thermal state generated in optical fibers
Author(s) -
Xiaoying Li,
Lei Yang,
Liang Cui,
Z. Y. Ou,
Dao-Yin Yu
Publication year - 2008
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.16.012505
Subject(s) - optics , photon , physics , interference (communication) , four wave mixing , qubit , thermal , dispersion (optics) , quantum optics , mixing (physics) , visibility , optical fiber , quantum , nonlinear optics , quantum mechanics , telecommunications , laser , channel (broadcasting) , meteorology , computer science
We experimentally demonstrate a Hong-Ou-Mandel type of two-photon interference effect with a heralded single-photon state and a thermal state. The light sources in the 1550 nm telecom band are generated from two independent dispersion-shifted fibers via four-wave mixing process. The observed visibility is (82+/- 11)%. This type of interference between independent sources is crucial in quantum information process with independent qubits.