Cascaded silicon Raman lasers as mid-infrared sources
- 12 October 2006
- journal article
- Published by Institution of Engineering and Technology (IET) in Electronics Letters
- Vol. 42 (21) , 1224-1226
- https://doi.org/10.1049/el:20062031
Abstract
It is shown by numerical simulations that cascaded silicon Raman lasers, in which the pump light undergoes multiple Stokes shifts in a silicon waveguide, can efficiently convert near-IR to mid-IR radiation. For pump wavelengths significantly below 2 µm, two-photon-absorption-induced free-carrier absorption degrades conversion efficiency, and the effective carrier lifetime determines the shortest possible pump wavelength.Keywords
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