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dc.contributor.authorCasals, J.
dc.contributor.authorParsa, S.
dc.contributor.authorChaitanya Kumar, S.
dc.contributor.authorDevi, K.
dc.contributor.authorSchunemann, P. G.
dc.contributor.authorEbrahim-Zadeh, Majid
dc.contributor.otherUniversitat Politècnica de Catalunya. Institut de Ciències Fotòniques
dc.identifier.citationCasals, J. [et al.]. Picosecond difference-frequency-generation in orientation-patterned gallium phosphide. "Optics Express", 7 Agost 2017, vol. 25, núm. 16, p. 19595-19602.
dc.description.abstractWe report the generation of tunable high-repetition-rate picosecond radiation in the mid-infrared using the new quasi-phase-matched nonlinear material of orientation-patterned gallium phosphide (OP-GaP). The source is realized by single-pass difference-frequencygeneration (DFG) between the output signal of a picosecond optical parametric oscillator (OPO) tunable across 1609-1637 nm with input pump pulses at 1064 nm in OP-GaP, resulting in tunable radiation across 3040-3132 nm. Using a 40-mm-long crystal, we have generated up to 57 mW of DFG average power at ~80 MHz repetition rate for a pump power of 5 W and signal power of 0.9 W, with >30 mW over >50% of the tuning range. The DFG source exhibits a passive power stability better than 3.2% rms over 1 hour in good spatial beam quality. To the best of our knowledge, this is the first picosecond frequency conversion source based on OP-GaP
dc.format.extent8 p.
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 Spain
dc.subjectÀrees temàtiques de la UPC::Física
dc.subject.lcshOptical parametric oscillators
dc.subject.otheroptical parametric oscillator
dc.titlePicosecond difference-frequency-generation in orientation-patterned gallium phosphide
dc.subject.lemacOscil·ladors -- PFC
dc.description.peerreviewedPeer Reviewed
dc.rights.accessOpen Access
dc.description.versionPostprint (published version)
dc.relation.projectidinfo:eu-repo/grantAgreement/EC/H2020/642661/EU/Infrared sensing made visible: Combining infrared light sources and upconversion sensors for improved sensitivity in medical applications and gas analysis/Mid-TECH
local.citation.publicationNameOptics Express

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