New class of compact diode pumped sub 10 fs lasers for biomedical applications
T. Lea, A. Müllerb, B. Sumpfb, O.B. Jensenc, A.K. Hansenc, P.E. :Andersenc
Published in:
Proc. SPIE 9740, Photonics West, San Francisco, USA, Feb. 13-18, 97400D (2016).
Abstract:
Diode-pumping Ti:sapphire lasers promises a new approach to low-cost femtosecond light sources. Thus in recent years much effort has been taken just to overcome the quite low power and low beam qualities of available green diodes to obtain output powers of several hundred milliwatts from a fs-laser. In this work we present an alternative method by deploying frequency-doubled IR diodes with good beam qualities to pump fs-lasers. The revolutionary approach allows choosing any pump wavelengths in the green region and avoids complicated relay optics for the diodes. For the first time we show results of a diode-pumped 10 fs-laser and how a single diode setup can be integrated into a 30 × 30 cm2 fs-laser system generating sub 20 fs laser pulses with output power towards half a Watt. This technology paves the way for a new class of very compact and cost-efficient fs-lasers for life science and industrial applications.
a Femtolasers, Fernkorngasse 10, 1100 Vienna, Austria
b Ferdinand-Braun-Institut, Leibniz-Institut für Höchstfrequenztechnik, Gustav-Kirchhoff-Str. 4, 12489 Berlin
c DTU Fotonik, Department of Photonics Engineering, Technical University of Denmark, Frederiksborgvej 399, 4000 Roskilde, Denmark
Keywords:
Tapered diode lasers, Second harmonic generation, Ti:sapphire lasers, ultrafast lasers, femtosecond lasers.
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