Broadly tunable femtosecond pulse generation in the near and mid-infrared

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DOIResolve DOI: http://doi.org/10.1364/AO.36.001894
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TypeArticle
Journal titleApplied optics
Volume36
Issue9
Pages18941897; # of pages: 4
AbstractHigh-repetition-rate (80-MHz) femtosecond infrared pulses are generated by difference frequency mixing (DFM) a femtosecond Ti:sapphire laser with a phase-locked synchronized cw mode-locked Nd:YAG picosecond laser. This DFM scheme is of particular interest for generating ultrashort near-IR pulses (~10 fs) because group velocity mismatch with a pump pulse can be ignored. The simplicity and the broad wavelength tunability (from the near IR to the mid-IR) of this scheme is demonstrated. Short (125-fs FWHM) optical pulses in the near IR around 1.5 ?m are obtained with noncritical type-I phase-matched LiB3 O5. We also used a similar scheme to generate mid-infrared pulses at 3.0 ?m with type-II phase-matched KTiOPO4.
Publication date
AffiliationNational Research Council Canada; NRC Institute for Microstructural Sciences; NRC Steacie Institute for Molecular Sciences
Peer reviewedNo
NPARC number12328542
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Record identifier0b0a71e1-22a8-40a6-b843-cd60b16261bc
Record created2009-09-10
Record modified2016-05-09
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