Lavdas, S;
Driscoll, JB;
Grote, RR;
Osgood, RM;
Panoiu, NC;
(2014)
Pulse compression in adiabatically tapered silicon photonic wires.
Optics Express
, 22
(6)
6296 - 6312.
10.1364/OE.22.006296.
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Abstract
We present a comprehensive analysis of pulse compression in adiabatically tapered silicon photonic wire waveguides (Si-PhWWGs), both at telecom (λ ∼ 1.55 μm) and mid-IR (λ ≳ 2.1 μm) wavelengths. Our theoretical and computational study is based on a rigorous model that describes the coupled dynamics of the optical field and photogenerated free carriers, as well as the influence of the physical and geometrical parameters of the Si-PhWWGs on these dynamics. We consider both the soliton and non-soliton pulse propagation regimes, rendering the conclusions of this study relevant to a broad range of experimental settings and practical applications. In particular, we show that by engineering the linear and nonlinear optical properties of Si-PhWWGs through adiabatically varying their width, one can achieve more than 10× pulse compression in millimeter-long waveguides. The inter-dependence between the pulse characteristics and compression efficiency is also discussed.
| Type: | Article |
|---|---|
| Title: | Pulse compression in adiabatically tapered silicon photonic wires |
| Location: | USA |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1364/OE.22.006296 |
| Publisher version: | http://dx.doi.org/10.1364/OE.22.006296 |
| Language: | English |
| Additional information: | This paper was published in Optics Express and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://dx.doi.org/10.1364/OE.22.006296. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law. |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/1447555 |
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