15 February 2012 Frequency-doubled diode laser for direct pumping of Ti:sapphire lasers
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Abstract
A single-pass frequency doubled high-power tapered diode laser emitting nearly 1.3 W of green light suitable for direct pumping of Ti:sapphire lasers generating ultrashort pulses is demonstrated. The pump efficiencies reached 75 % of the values achieved with a commercial solid-state pump laser. However, the superior electro-optical efficiency of the diode laser improves the overall efficiency of the Ti:sapphire laser by a factor > 2. The optical spectrum emitted by the Ti:sapphire laser shows a spectral width of 112 nm (FWHM). Based on autocorrelation measurements, pulse widths of less than 20 fs are measured. These results open the opportunity of establishing diode laser pumped Ti:sapphire lasers for e.g. biophotonic applications like retinal optical coherence tomography or pumping of photonic crystal fibers for CARS microscopy.
© (2012) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
André Müller, André Müller, Ole B. Jensen, Ole B. Jensen, Angelika Unterhuber, Angelika Unterhuber, Tuan Le, Tuan Le, Andreas Stingl, Andreas Stingl, Karl-Heiz Hasler, Karl-Heiz Hasler, Bernd Sumpf, Bernd Sumpf, Götz Erbert, Götz Erbert, Peter E. Andersen, Peter E. Andersen, Paul M. Petersen, Paul M. Petersen, } "Frequency-doubled diode laser for direct pumping of Ti:sapphire lasers", Proc. SPIE 8235, Solid State Lasers XXI: Technology and Devices, 82351F (15 February 2012); doi: 10.1117/12.906403; https://doi.org/10.1117/12.906403
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