A microstructured fiber source of photon pairs at widely separated wavelengths

Details A microstructured fiber source of photon pairs at widely separated wavelengths A microstructured fiber source of photon pairs at widely separated wavelengths

2009-08-25

arxiv.org/abs/0908.3516v2

Opt. Lett. 35, 499-501 (2010)

Physics

Quantum Physics

3 pages, 3 figures. Published version

Scientific paper

We demonstrate a source of photon pairs with widely separated wavelengths, 810 nm and 1548 nm, generated through spontaneous four-wave mixing in a microstructured fiber. The second-order auto-correlation function g^{(2)}(0) was measured to confirm the non-classical nature of a heralded single photon source constructed from the fiber. The microstructured fiber presented herein has the interesting property of generating photon pairs with wavelengths suitable for a quantum repeater able to link free-space channels with fiber channels, as well as for a high quality telecommunication wavelength heralded single photon source. It also has the advantage of straightforward coupling into optical fiber. These reasons make this photon pair source particularly interesting for long distance quantum communication.

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