Low-noise chip-based frequency conversion by four-wave-mixing Bragg scattering in SiN_x waveguides
Abstract
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.
- Publication:
-
Optics Letters
- Pub Date:
- July 2012
- DOI:
- 10.1364/OL.37.002997
- arXiv:
- arXiv:1203.6558
- Bibcode:
- 2012OptL...37.2997A
- Keywords:
-
- Physics - Optics;
- Quantum Physics
- E-Print:
- 4 pages, two columns, 3 figures