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Passively mode-locked high-power Nd:YAG lasers. with multiple laser heads

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Abstract.

We discuss power scaling of passively mode-locked lasers using multiple laser heads in the resonator. We experimentally compared two different approaches for the cavity design, both using three side-pumped Nd:YAG laser heads. We obtained a record-high average output power of up to 27 W with close to diffraction-limited beam quality, a pulse duration of 19 ps, a pulse energy of 0.5 μJ, and 23 kW peak power. Single-pass second-harmonic generation in a 10-mm-long LBO crystal yields 16.2 W of 532-nm radiation.

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Authors and Affiliations

  1. Ultrafast Laser Physics, Institute of Quantum Electronics, Swiss Federal Institute of Technology, ETH Hönggerberg – HPT, 8093 Zürich, Switzerland (Fax: +41-1/633-1059, E-mail: spuehler@iqe.phys.ethz.ch), CH

    G.J. Spühler, T. Südmeyer, R. Paschotta & U. Keller

  2. Centre Suisse d’Electronique et de Microtechnique-Zürich, Badenerstrasse 569, 8048 Zürich, Switzerland, CH

    M. Moser

  3. Time-Bandwidth Products, Inc., Technoparkstrasse 1, 8005 Zürich, Switzerland, CH

    K.J. Weingarten

Authors
  1. G.J. Spühler
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  2. T. Südmeyer
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  3. R. Paschotta
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  4. M. Moser
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  5. K.J. Weingarten
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  6. U. Keller
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Received: 6 January 2000 / Published online: 24 March 2000

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Spühler, G., Südmeyer, T., Paschotta, R. et al. Passively mode-locked high-power Nd:YAG lasers. with multiple laser heads . Appl Phys B 71, 19–25 (2000). https://doi.org/10.1007/PL00021154

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  • DOI: https://doi.org/10.1007/PL00021154

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