Low-noise on-chip frequency conversion by four-wave-mixing Bragg scattering in SiNx waveguides

Details Low-noise on-chip frequency conversion by four-wave-mixing Bragg scattering in SiNx waveguides Low-noise on-chip frequency conversion by four-wave-mixing Bragg scattering in SiNx waveguides

2012-03-29

arxiv.org/abs/1203.6558v1

Physics

Optics

4 pages, two columns, 3 figures

Scientific paper

Low-noise, tunable wavelength-conversion through non-degenerate four-wave mixing Bragg scattering in SiNx waveguides is experimentally demonstrated. Finite element method simulations of waveguide dispersion are used with the split-step Fourier method to predict device performance, and indicate a strong dependence of the conversion efficiency on phase matching, which is controlled by the waveguide geometry. Two 1550 nm wavelength band pulsed pumps are used to achieve tunable conversion of a 980 nm signal over a range of 5 nm with a peak conversion efficiency of \approx 5 %. The demonstrated Bragg scattering process is suitable for frequency conversion of quantum states of light.

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