Abstract

Radially polarized beams exhibit interesting properties for material processing, as well as for different scientific applications such as optical trapping, plasmon excitation or data storage. With a thin-disk multipass amplifier radially polarized ultra-short pulses with an average output power of 635 W were demonstrated in [1]. For 100 W class operation, single-crystal fiber (SCF) amplifiers are an alternative approach to the thin-disk architecture. This approach reduces the costs and the complexity of the overall laser system significantly. The highest average output power demonstrated with an SCF amplifier was 160 W for a linearly polarized Gaussian seed beam [2] and 85 W for a ring-shaped radially polarized seed beam [3]. In this contribution, we present the amplification of a ring-shaped radially polarized seed beam in a single-stage SCF amplifier to an average output power of 290 W in continuous-wave (CW) operation and 270 W in femtosecond pulsed operation. This is, to the best of our knowledge, the highest average output power of a radially polarized beam demonstrated so far with an SCF amplifier.

© 2019 IEEE

PDF Article
More Like This
Thin-disk multipass amplifier delivering radially polarized ultrafast pulses with an average output power of 1 kW

André Loescher, Jan-Philipp Negel, Christoph Röcker, Frieder Beirow, Thomas Graf, and Marwan Abdou Ahmed
ca_5_5 The European Conference on Lasers and Electro-Optics (CLEO_Europe) 2019

High power Yb:YAG single-crystal fiber booster with regenerative amplifier based on dual-slab Yb:KGW crystals

Byunghak Lee, Bosu Jeong, Juhee Yang, Jun Wan Kim, Elena G. Sall, Chur Kim, Seol Won Park, Duchang Heo, Guang-Hoon Kim, and Vladimir E. Yashin
JTh3A.22 Advanced Solid State Lasers (ASSL) 2019

A 265W and 782 fs amplified radially polarized beam emitted by a thin-disk multipass amplifier

André Loescher, Jan-Philipp Negel, Thomas Graf, Wolfgang Pallmann, Bojan Resan, Igor Martial, Julien Didierjean, Fabien Lesparre, Jean-Thomas Gomes, Xavier Délen, Frederic Druon, Francois Balembois, Patrick Georges, and Marwan Abdou Ahmed
ATh3A.3 Advanced Solid State Lasers (ASSL) 2015

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription