Integrated CARS Source based on Seeded Four-wave Mixing in Silicon Nitride

Abstract

We present a theoretical investigation of an integrated nonlinear light source for coherent anti-Stokes Raman scattering (CARS) based on silicon nitride waveguides. Wavelength tunable and temporally synchronized signal and idler pulses are obtained by using seeded four-wave mixing. We find that the calculated input pump power needed for nonlinear wavelength generation is more than one order of magnitude lower than in previously reported approaches based on optical fibers. The tuning range of the wavelength conversion was calculated to be 1418 nm to 1518 nm (idler) and 788 nm to 857 nm (signal), which corresponds to a coverage of vibrational transitions from 2350 cm${}^{-1}$ to 2810 cm${}^{-1}$. A maximum conversion efficiency of 19.1% at a peak pump power of 300 W was obtained.

8 pages

References in corpus (3)

• 1 Low power continuous-wave nonlinear optics in silica glass integrated waveguide structures
• Overcoming Si3N4 film stress limitations for High Quality factor ring resonators
• Low-noise on-chip frequency conversion by four-wave-mixing Bragg scattering in SiNx waveguides

Cited by in corpus (4)

• Photo-induced second-order nonlinearity in stoichiometric silicon nitride waveguides
• Surface acoustic waves for acousto-optic modulation in buried silicon nitride waveguides
• Ultrafast, low-power, all-optical switching via birefringent phase-matched transverse mode conversion in integrated waveguides
• On-Chip Phase-Shift Induced Control of Supercontinuum Generation in a Dual-Core Si${}_3$N${}_4$ Waveguide