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High-power broadband source tunable from 2.8 to 4 μm based on difference frequency generation
Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för fysik. Faculty of Electronics, Wrocław University of Science and Technology, Wybrzeze Wyspianskiego 27, 50-370 Wroclaw, Poland .
Vise andre og tillknytning
2017 (engelsk)Inngår i: 2017 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC), IEEE, 2017Konferansepaper, Publicerat paper (Fagfellevurdert)
Abstract [en]

Mid-infrared (MIR) frequency comb sources enable high-speed and accurate detection of various species, since many molecules possess their fingerprints in this wavelength range. Usually, broadband radiation in this spectral region is obtained from optical parametric oscillators (OPOs), which provide high output power and broad tuning capabilities [1]. However, OPO sources require locking of the cavity to the pumping oscillator, which increases the complexity. MIR sources based on difference frequency generation (DFG) are interesting alternatives to OPOs, due to their simplicity, single-pass configuration, broad tunability, and fully passive cancellation of the carrier-envelope offset in the generated idler pulses. However, the conversion efficiency of the DFG process is usually insufficient to reach the output power levels easily achieved in OPO systems. Here, we demonstrate a widely tunable DFG source based on a mode-locked Yb-doped fiber laser, with average MIR output power reaching 165 mW, which is more than in previous reports on similar DFG systems [2,3].

sted, utgiver, år, opplag, sider
IEEE, 2017.
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Identifikatorer
URN: urn:nbn:se:umu:diva-152158DOI: 10.1109/CLEOE-EQEC.2017.8086543ISI: 000432564600302ISBN: 978-1-5090-6736-7 (digital)OAI: oai:DiVA.org:umu-152158DiVA, id: diva2:1252339
Konferanse
Conference on Lasers and Electro-Optics Europe / European Quantum Electronics Conference (CLEO/Europe-EQEC), JUN 25-29, 2017, Munich, GERMANY
Forskningsfinansiär
Knut and Alice Wallenberg Foundation, KAW 2015.0159Tilgjengelig fra: 2018-10-01 Laget: 2018-10-01 Sist oppdatert: 2018-10-01bibliografisk kontrollert

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