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Picosecond pulses with 50 W peak power and reduced ASE background from an all-semiconductor MOPA system

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Abstract

Using a single-stage all-semiconductor master oscillator-power amplifier system, consisting of a Q-switched distributed Bragg reflector laser as master oscillator and a tapered power amplifier, we generate laser pulses with a length of 80 ps and a peak power of 50 W. The spectral width is less than 1 nm around a center wavelength of 1066 nm. The background of the amplified spontaneous emission is significantly reduced due to a pulsed, instead of continuous-wave operation of the amplifier. The current pulses have a width of approximately 10 ns and a repetition frequency of 1.25 MHz.

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Authors and Affiliations

  1. Ferdinand-Braun-Institut, Leibniz-Institut für Höchstfrequenztechnik im Forschungsverbund Berlin e.V., Gustav-Kirchhoff-Straße 4, 12489, Berlin, Germany

    S. Schwertfeger, A. Klehr, T. Hoffmann, A. Liero, H. Wenzel & G. Erbert

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  1. S. Schwertfeger
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  2. A. Klehr
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  3. T. Hoffmann
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  4. A. Liero
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  5. H. Wenzel
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  6. G. Erbert
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Correspondence to S. Schwertfeger.

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Schwertfeger, S., Klehr, A., Hoffmann, T. et al. Picosecond pulses with 50 W peak power and reduced ASE background from an all-semiconductor MOPA system. Appl. Phys. B 103, 603–607 (2011). https://doi.org/10.1007/s00340-011-4481-8

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  • DOI: https://doi.org/10.1007/s00340-011-4481-8

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