Enhanced gain coefficient in Raman amplifier based on silicon nanocomposites (Articolo in rivista)

Type
Label
  • Enhanced gain coefficient in Raman amplifier based on silicon nanocomposites (Articolo in rivista) (literal)
Anno
  • 2011-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1016/j.photonics.2010.07.007 (literal)
Alternative label
  • Ferrara MA, Sirleto L, Nicotra G, Spinella C, Rendina I (2011)
    Enhanced gain coefficient in Raman amplifier based on silicon nanocomposites
    in Photonics and nanostructures (Print)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Ferrara MA, Sirleto L, Nicotra G, Spinella C, Rendina I (literal)
Pagina inizio
  • 1 (literal)
Pagina fine
  • 7 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 9 (literal)
Rivista
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • IMM-CNR (literal)
Titolo
  • Enhanced gain coefficient in Raman amplifier based on silicon nanocomposites (literal)
Abstract
  • In this paper, silicon nanoparticles dispersed into a silica phase by sol gel processing has been investigated by structural and nonlinear-optical characterization. The structural characterization has been performed by energy filtered and scanning transmission electron microscopy. A silicon nanoparticles mean radius of about 49 nm and a nanoparticle density of about 1.62 x 10(8) dots/cm(2) have been obtained. Regarding nonlinear optics characterization, the observation of stimulated Raman scattering and the realization of a Raman amplifier based on silicon nanocomposites are described. Using a 1427 nm cw pump laser, amplification of Stokes signal, at 1542.2 nm, up to 1.4 dB/cm is demonstrated. A preliminary valuation of approximately a fivefold enhancement of the gain coefficient a significant reduction of threshold power are reported. Our findings have a potential interest for silicon-based Raman lasers. (literal)
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