Circumventing spontaneous Raman noise in a correlated photon pair source

Daniel R. Blay, L. G. Helt, M. J. Steel

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We propose a dual-pump third-order nonlinear scheme for producing pairs of correlated photons that is less susceptible to Raman noise than typical spontaneous four-wave mixing (SFWM) methods. Beginning with the full multimode Hamiltonian, we derive a general expression for the joint spectral amplitude, from which the probability of producing a pair of photons can be calculated. As an example, we demonstrate that a probability of 0.012 pairs per pulse can be achieved in an appropriately designed fused silica microfiber. As compared with single pump SFWM in standard fiber, we calculate that our process shows significant suppression of the spontaneous Raman scattering and an improvement in the signal to noise ratio.
Original languageEnglish
Article number091301
Pages (from-to)091301-1-091301-7
Number of pages7
JournalAPL photonics
Issue number9
Publication statusPublished - Dec 2016

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Copyright the Author(s) 2016. Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher.


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