Cascaded silicon Raman lasers as mid-infrared sources

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 2mum, two-photon-absorption-induced free-carrier abs...

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Veröffentlicht in:	Electronics letters 2006-10, Vol.42 (21), p.1224-1226
Hauptverfasser:	KRAUSE, M, DRAHEIM, R, RENNER, H, BRINKMEYER, E
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Circuit properties Electric, optical and optoelectronic circuits Electronics Exact sciences and technology Fundamental areas of phenomenology (including applications) Integrated optics. Optical fibers and wave guides Lasers Nonlinear optics Optical and optoelectronic circuits Optical susceptibility, hyperpolarizability Optics Physics Raman lasers
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Zusammenfassung:	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 2mum, two-photon-absorption-induced free-carrier absorption degrades conversion efficiency, and the effective carrier lifetime determines the shortest possible pump wavelength.
ISSN:	0013-5194 1350-911X
DOI:	10.1049/el:20062031