Two-photon interferences on a silica-on-silicon chip with telecom-band photon pairs generated in a fiber.
Opt Express
; 26(22): 29471-29481, 2018 Oct 29.
Article
em En
| MEDLINE
| ID: mdl-30470110
ABSTRACT
We report two-photon interferences on a silica-on-silicon chip of Mach-Zehnder interferometer using telecommunication-band correlated photon pairs. The photon pairs were generated by spontaneous four-waving mixing process in a dispersion-shifted fiber. The integrated chip, which was fabricated by standard silica-on-silicon planar lightwave circuit technology, contained a Mach-Zehnder interferometer with a thermo-optic phase shifter. The insertion loss of the interferometer was less than 1 dB. We demonstrated two-photon interferences with both degenerate- and non-degenerate-frequency photon pairs on the Mach-Zehnder interferometer chip. A high fringe visibility was achieved in the interference with nondegenerate-frequency photons. Properties of quantum interference were demonstrated in the interference with degenerate-frequency photon pairs, which is an important way to manipulate the quantum state. These results show great potential of silica-on-silicon photonic chips in applications for the fiber-chip scheme in quantum networks.
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01-internacional
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MEDLINE
Idioma:
En
Revista:
Opt Express
Ano de publicação:
2018
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Article