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rdf:type
lifeskim:mentions
pubmed:issue
22
pubmed:dateCreated
2010-12-17
pubmed:abstractText
We experimentally investigate four-wave mixing (FWM) in short (80 ?m) dispersion-engineered slow light silicon photonic crystal waveguides. The pump, probe and idler signals all lie in a 14 nm wide low dispersion region with a near-constant group velocity of c/30. We measure an instantaneous conversion efficiency of up to -9dB between the idler and the continuous-wave probe, with 1W peak pump power and 6 nm pump-probe detuning. This conversion efficiency is found to be considerably higher (>10 × ) than that of a Si nanowire with a group velocity ten times larger. In addition, we estimate the FWM bandwidth to be at least that of the flat band slow light window. These results, supported by numerical simulations, emphasize the importance of engineering the dispersion of PhC waveguides to exploit the slow light enhancement of FWM efficiency, even for short device lengths.
pubmed:language
eng
pubmed:journal
pubmed:status
PubMed-not-MEDLINE
pubmed:month
Oct
pubmed:issn
1094-4087
pubmed:author
pubmed:issnType
Electronic
pubmed:day
25
pubmed:volume
18
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
22915-27
pubmed:year
2010
pubmed:articleTitle
Four-wave mixing in slow light engineered silicon photonic crystal waveguides.
pubmed:affiliation
Centre for Ultrahigh-bandwidth Devices for Optical Systems, Institute for Photonics and Optical Sciences, School of Physics, University of Sydney, NSW 2006, Australia. monat@physics.usyd.edu.au
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't