Lavdas, S;
Zhao, S;
Panoiu, NC;
Driscoll, JB;
Grote, RR;
Osgood, RM;
(2014)
Wavelength conversion and parametric amplification of optical pulses via quasi-phase-matched four-wave mixing in long-period Bragg silicon waveguides.
Optics Letters
, 39
(13)
4017 - 4020.
10.1364/OL.39.004017.
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Abstract
We present a theoretical analysis supported by comprehensive numerical simulations of quasi-phase-matched fourwave mixing (FWM) of ultrashort optical pulses that propagate in weakly width-modulated silicon photonic nanowire gratings. Our study reveals that, by properly designing the optical waveguide such that the interacting pulses copropagate with the same group velocity, a conversion efficiency enhancement of more than 15 dB, as compared to a uniform waveguide, can readily be achieved. We also analyze the dependence of the conversion efficiency and FWM gain on the pulse width, time delay, walk-off parameter, and grating modulation depth. © 2014 Optical Society of America.
| Type: | Article |
|---|---|
| Title: | Wavelength conversion and parametric amplification of optical pulses via quasi-phase-matched four-wave mixing in long-period Bragg silicon waveguides |
| DOI: | 10.1364/OL.39.004017 |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng |
| URI: | https://discovery.ucl.ac.uk/id/eprint/1443006 |
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