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Optics InfoBase Conference Papers

1.5-μm band hong-ou-mandel experiment using photon pairs generated in two independent optical fibers

Hiroki Takesue

Published Jan 1, 2007• 0 citations
OpenAlex

Abstract

I report the first Hong-Ou-Mandel experiment using two photon pairs in the 1.5-mum band that are generated in two independent dispersion shifted fibers. A quantum interference with 53% visibility was observed.

Related papers

1.5-μm Band Hong-Ou-Mandel Experiment Using Photon Pairs Generated in Two Independent Optical Fibers

Hiroki Takesue

I report the first Hong-Ou-Mandel experiment using two photon pairs in the 1.5-mum band that are generated in two independent dispersion shifted fibers. A quantum interference with 53% visibility was observed.

Conference on Lasers and Electro-Optics•May 1, 2007•0 citations

1.5-¿m band hong-ou-mandel experiment using photon pairs generated in two independent optical fibers

Hiroki Takesue

I report the first Hong-Ou-Mandel experiment using two photon pairs in the 1.5-μm band that are generated in two independent dispersion shifted fibers. A quantum interference with 53% visibility was observed.

Quantum Electronics and Laser Science Conference•May 1, 2007•1 citation

1.5 μ m band Hong-Ou-Mandel experiment using photon pairs generated in two independent dispersion shifted fibers

Hiroki Takesue

This letter reports a Hong-Ou-Mandel experiment using two photon pairs in the 1.5μm band that are generated in two independent dispersion shifted fibers. A quantum interference with 53% visibility was observed. Thanks to the narrow bandwidth of the photon pairs, the required accuracy for photon arrival time adjustment was relaxed to a few millimeters, which is a great advantage for an application to a quantum relay.

Applied Physics Letters•May 14, 2007•35 citations

Two-photon quantum interference in the 1.5 μm telecommunication band

Seok-Beom Cho, Tae-Gon Noh

We report on two-photon quantum interference experiments in the standard telecommunication band. Two identical photons in the 1.5 mm wavelength band were generated in spatially separated modes by a type-I spontaneous parametric down-conversion process, and injected into a fiber-optic Hong-Ou-Mandel interferometer. Two-photon interference patterns of dip and spatial beating in the coincidence counting rate were observed by varying the difference in optical path lengths. The visibilities obtained in the net coincidences were close to the theoretical value of 100%. The raw visibilities were also well above the classical limit.

Optics Express•Jan 1, 2007•7 citations

Generation of telecom-band indistinguishable photon pairs in dispersion-shifted fiber

Jun Chen, Kim Fook Lee, Prem Kumar

We use a 50/50 Sagnac-loop configuration to spatially separate degenerate photon pairs created via four-photon scattering in dispersion-shifted fiber, A Hong-Ou-Mandel dip with visibility > 94% is observed.

Quantum Electronics and Laser Science Conference•May 1, 2007•0 citations

Observation of quantum interference between a single-photon state and a thermal state generated in optical fibers

Xiaoying Li, Lei Yang, Liang Cui +2 more

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.

Optics Express•Aug 4, 2008•31 citations
We report on two-photon quantum interference experiments in the standard telecommunication band. Two identical photons in the 1.5 mm wavelength band were generated in spatially separated modes by a type-I spontaneous parametric down-conversion process, and injected into a fiber-optic Hong-Ou-Mandel interferometer. Two-photon interference patterns of dip and spatial beating in the coincidence counting rate were observed by varying the difference in optical path lengths. The visibilities obtained in the net coincidences were close to the theoretical value of 100%. The raw visibilities were also well above the classical limit.