Femtosecond Cr:LiSAF and Cr:LiCAF lasers pumped by tapered diode lasers

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DEMIRBAS, Ümit, Michael SCHMALZ, Bernd SUMPF, Erbert GÖTZ, Gale S. PETRICH, Leslie A. KOLODZIEJSKI, James G. FUJIMOTO, Franz X. KÄRTNER, Alfred LEITENSTORFER, 2011. Femtosecond Cr:LiSAF and Cr:LiCAF lasers pumped by tapered diode lasers. In: Optics Express. 19(21), pp. 20444-20461. eISSN 1094-4087

@article{Demirbas2011-10-10Femto-19189, title={Femtosecond Cr:LiSAF and Cr:LiCAF lasers pumped by tapered diode lasers}, year={2011}, doi={10.1364/OE.19.020444}, number={21}, volume={19}, journal={Optics Express}, pages={20444--20461}, author={Demirbas, Ümit and Schmalz, Michael and Sumpf, Bernd and Götz, Erbert and Petrich, Gale S. and Kolodziejski, Leslie A. and Fujimoto, James G. and Kärtner, Franz X. and Leitenstorfer, Alfred} }

<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:bibo="http://purl.org/ontology/bibo/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:dcterms="http://purl.org/dc/terms/" xmlns:xsd="http://www.w3.org/2001/XMLSchema#" > <rdf:Description rdf:about="https://kops.uni-konstanz.de/rdf/resource/123456789/19189"> <dc:language>eng</dc:language> <dcterms:bibliographicCitation>Optics express ; 19 (2011), 21. - S. 20444-20461</dcterms:bibliographicCitation> <dc:creator>Leitenstorfer, Alfred</dc:creator> <dcterms:abstract xml:lang="eng">We report compact, low-cost and efficient Cr:Colquiriite lasers that are pumped by high brightness tapered laser diodes. The tapered laser diodes provided 1 to 1.2 W of output power around 675 nm, at an electrical-to-optical conversion efficiency of about 30%. Using a single tapered diode laser as the pump source, we have demonstrated output powers of 500 mW and 410 mW together with slope efficiencies of 47% and 41% from continuous wave (cw) Cr:LiSAF and Cr:LiCAF lasers, respectively. In cw mode-locked operation, sub-100-fs pulse trains with average power between 200 mW and 250 mW were obtained at repetition rates around 100 MHz. Upon pumping the Cr:Colquiriite lasers with two tapered laser diodes (one from each side of the crystal), we have observed scaling of cw powers to 850 mW in Cr:LiSAF and to 650 mW in Cr:LiCAF. From the double side pumped Cr:LiCAF laser, we have also obtained ~220 fs long pulses with 5.4 nJ of pulse energy at 77 MHz repetition rate. These are the highest energy levels reported from Cr:Colquiriite so far at these repetition rates. Our findings indicate that tapered diodes in the red spectral region are likely to become the standard pump source for Cr:Colquiriite lasers in the near future. Moreover, the simplified pumping scheme might facilitate efficient commercialization of Cr:Colquiriite systems, bearing the potential to significantly boost applications of cw and femtosecond lasers in this spectral region (750-1000 nm).</dcterms:abstract> <dc:creator>Kolodziejski, Leslie A.</dc:creator> <dc:contributor>Götz, Erbert</dc:contributor> <dc:contributor>Kolodziejski, Leslie A.</dc:contributor> <dcterms:title>Femtosecond Cr:LiSAF and Cr:LiCAF lasers pumped by tapered diode lasers</dcterms:title> <bibo:uri rdf:resource="http://kops.uni-konstanz.de/handle/123456789/19189"/> <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2012-05-03T05:53:26Z</dc:date> <dc:creator>Schmalz, Michael</dc:creator> <dc:contributor>Fujimoto, James G.</dc:contributor> <dcterms:issued>2011-10-10</dcterms:issued> <dc:contributor>Kärtner, Franz X.</dc:contributor> <dc:creator>Sumpf, Bernd</dc:creator> <dc:contributor>Demirbas, Ümit</dc:contributor> <dc:creator>Kärtner, Franz X.</dc:creator> <dc:contributor>Leitenstorfer, Alfred</dc:contributor> <dc:contributor>Schmalz, Michael</dc:contributor> <dc:rights>deposit-license</dc:rights> <dc:contributor>Sumpf, Bernd</dc:contributor> <dc:creator>Fujimoto, James G.</dc:creator> <dcterms:rights rdf:resource="http://nbn-resolving.org/urn:nbn:de:bsz:352-20140905103605204-4002607-1"/> <dc:creator>Götz, Erbert</dc:creator> <dc:contributor>Petrich, Gale S.</dc:contributor> <dc:creator>Petrich, Gale S.</dc:creator> <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2012-05-03T05:53:26Z</dcterms:available> <dc:creator>Demirbas, Ümit</dc:creator> </rdf:Description> </rdf:RDF>

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