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Efficient frequency-doubling of femtosecond pulses in waveguide and bulk nonlinear crystals - Design, fabrication, theory and experiment
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2006 (English)In: FRONTIERS IN PLANAR LIGHTWAVE CIRCUIT TECHNOLOGY DESIGN, SIMULATION, AND FABRICATION / [ed] Janz, S Ctyroky, J Tanev, S, Univ St Andrews, Sch Phys & Astron, St Andrews KY16 9SS, Fife, Scotland. Univ Dundee, Div Elect Engn & Phys, Dundee DD1 4HN, Scotland. Univ Sofia, Fac Phys, BG-1164 Sofia, Bulgaria. Max Planck Inst Polymer Res, Ackermannweg 10, D-55128 Mainz, Germany. Royal Inst Technol, Dept Phys, SE-10691 Stockholm, Sweden. AdvR Inc, Bozeman, MT 59718 USA.: SPRINGER , 2006, p. 189-+Conference paper, Published paper (Refereed)
Abstract [en]

We investigate efficient frequency-doubling of low energy femtosecond pulses in bulk and waveguide nonlinear crystals, thereby demonstrating how to achieve a compact and portable ultrafast blue light Source. Using a femtosecond Cr:LiSAF laser (fundamental wavelength 860 nm) we examine the relative merits of the process of second harmonic generation (SHG) using bulk potassium niobate, bulk aperiodically-poled KTP, periodically-poled and aperiodically-poled KTP waveguide crystals. While SHG conversion efficiencies LIP to 37% were achieved using the waveguides, non-traditional strong focusing in the bulk samples yielded efficiencies of 30%. We have developed several theoretical models to accurately describe the temporal and spectral properties of the generated blue light, as well as the observed saturation behavior of the conversion process in the waveguide structures.

Place, publisher, year, edition, pages
Univ St Andrews, Sch Phys & Astron, St Andrews KY16 9SS, Fife, Scotland. Univ Dundee, Div Elect Engn & Phys, Dundee DD1 4HN, Scotland. Univ Sofia, Fac Phys, BG-1164 Sofia, Bulgaria. Max Planck Inst Polymer Res, Ackermannweg 10, D-55128 Mainz, Germany. Royal Inst Technol, Dept Phys, SE-10691 Stockholm, Sweden. AdvR Inc, Bozeman, MT 59718 USA.: SPRINGER , 2006. p. 189-+
Series
NATO Science Series II-Mathematics Physics and Chemistry, ISSN 1568-2609 ; 216
Keywords [en]
diode-pumped lasers, frequency conversion, modelocked lasers, waveguides, periodic structures, quasi-phasematching, femtosecond pulses
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-242433ISI: 000235996200008ISBN: 1-4020-4164-0 (print)OAI: oai:DiVA.org:kth-242433DiVA, id: diva2:1287448
Conference
NATO Advanced Research Workshop on Frontiers in Planar Lightwave Circuit Technology, SEP 21-25, 2004, Ottawa, CANADA
Note

QCR 20190211

Available from: 2019-02-11 Created: 2019-02-11 Last updated: 2019-02-11Bibliographically approved

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