Jan Rothhardt

Summary

Affiliation: Friedrich Schiller University
Country: Germany

Publications

  1. doi request reprint 135 W average-power femtosecond pulses at 520 nm from a frequency-doubled fiber laser system
    Jan Rothhardt
    Friedrich Schiller University Jena, Institute of Applied Physics, Jena, Germany
    Opt Lett 36:316-8. 2011
  2. ncbi request reprint Octave-spanning OPCPA system delivering CEP-stable few-cycle pulses and 22 W of average power at 1 MHz repetition rate
    Jan Rothhardt
    Helmholtz Institute Jena, Jena, Germany
    Opt Express 20:10870-8. 2012
  3. doi request reprint Preferential gain photonic-crystal fiber for mode stabilization at high average powers
    Tino Eidam
    Friedrich Schiller University Jena, Institute of Applied Physics, Jena, Germany
    Opt Express 19:8656-61. 2011
  4. doi request reprint 530 W, 1.3 mJ, four-channel coherently combined femtosecond fiber chirped-pulse amplification system
    Arno Klenke
    Institute of Applied Physics, Abbe Center of Photonics, Friedrich Schiller Universitat Jena, Albert Einstein Str 15, Jena 07745, Germany
    Opt Lett 38:2283-5. 2013
  5. doi request reprint Fiber-based source for multiplex-CARS microscopy based on degenerate four-wave mixing
    Thomas Gottschall
    Institute of Applied Physics, Abbe Center of Photonics, Friedrich Schiller Universitat Jena, Max Wien Platz 1, 07743 Jena, Germany
    Opt Express 20:12004-13. 2012
  6. doi request reprint Fiber chirped-pulse amplification system emitting 3.8 GW peak power
    Tino Eidam
    Friedrich Schiller University Jena, Institute of Applied Physics, Jena, Germany
    Opt Express 19:255-60. 2011
  7. doi request reprint 1 MHz repetition rate hollow fiber pulse compression to sub-100-fs duration at 100 W average power
    Jan Rothhardt
    Institute of Applied Physics, Friedrich Schiller University Jena, Albert Einstein Strasse 15, 07745 Jena, Germany
    Opt Lett 36:4605-7. 2011
  8. doi request reprint Coherently-combined two channel femtosecond fiber CPA system producing 3 mJ pulse energy
    Arno Klenke
    Institute of Applied Physics, Friedrich Schiller University Jena, Albert Einstein Str 15, 07745 Jena, Germany
    Opt Express 19:24280-5. 2011
  9. ncbi request reprint Enhancing the macroscopic yield of narrow-band high-order harmonic generation by fano resonances
    Jan Rothhardt
    Institute of Applied Physics, Abbe Center of Photonics, Friedrich Schiller Universitat Jena, Albert Einstein Strasse 15, 07745 Jena, Germany and Helmholtz Institute Jena, Fröbelstieg 3, 07743 Jena, Germany
    Phys Rev Lett 112:233002. 2014
  10. doi request reprint Thermal effects in high average power optical parametric amplifiers
    Jan Rothhardt
    Institute of Applied Physics, Abbe Center of Photonics, Friedrich Schiller University Jena, Jena 07745, Germany
    Opt Lett 38:763-5. 2013

Collaborators

Detail Information

Publications13

  1. doi request reprint 135 W average-power femtosecond pulses at 520 nm from a frequency-doubled fiber laser system
    Jan Rothhardt
    Friedrich Schiller University Jena, Institute of Applied Physics, Jena, Germany
    Opt Lett 36:316-8. 2011
    ..2. To our knowledge, the system presented here is the highest average power green laser source generating femtosecond pulses with diffraction-limited beam quality...
  2. ncbi request reprint Octave-spanning OPCPA system delivering CEP-stable few-cycle pulses and 22 W of average power at 1 MHz repetition rate
    Jan Rothhardt
    Helmholtz Institute Jena, Jena, Germany
    Opt Express 20:10870-8. 2012
    ..Further scaling towards single-cycle pulses, higher energy and output power is discussed...
  3. doi request reprint Preferential gain photonic-crystal fiber for mode stabilization at high average powers
    Tino Eidam
    Friedrich Schiller University Jena, Institute of Applied Physics, Jena, Germany
    Opt Express 19:8656-61. 2011
    ..In a chirped-pulse amplification system we extracted up to 303 W of average power from this fiber with a measured M2 value of 1.4...
  4. doi request reprint 530 W, 1.3 mJ, four-channel coherently combined femtosecond fiber chirped-pulse amplification system
    Arno Klenke
    Institute of Applied Physics, Abbe Center of Photonics, Friedrich Schiller Universitat Jena, Albert Einstein Str 15, Jena 07745, Germany
    Opt Lett 38:2283-5. 2013
    ..To the best of our knowledge, such a parameter combination, i.e., gigawatt pulses with half a kilowatt average power, has not been demonstrated so far with any other laser architecture. ..
  5. doi request reprint Fiber-based source for multiplex-CARS microscopy based on degenerate four-wave mixing
    Thomas Gottschall
    Institute of Applied Physics, Abbe Center of Photonics, Friedrich Schiller Universitat Jena, Max Wien Platz 1, 07743 Jena, Germany
    Opt Express 20:12004-13. 2012
    ..This work marks a significant step towards a simple and powerful all-fiber, maintenance-free multiplex-CARS source for real-world applications outside a laboratory environment...
  6. doi request reprint Fiber chirped-pulse amplification system emitting 3.8 GW peak power
    Tino Eidam
    Friedrich Schiller University Jena, Institute of Applied Physics, Jena, Germany
    Opt Express 19:255-60. 2011
    ..8 GW could be achieved by combining active phase shaping with an efficient reduction of the acquired nonlinear phase. Therefore, we used an Ytterbium-doped large-pitch fiber with a mode field diameter of 105 µm as the main amplifier...
  7. doi request reprint 1 MHz repetition rate hollow fiber pulse compression to sub-100-fs duration at 100 W average power
    Jan Rothhardt
    Institute of Applied Physics, Friedrich Schiller University Jena, Albert Einstein Strasse 15, 07745 Jena, Germany
    Opt Lett 36:4605-7. 2011
    ..For the first time, to our knowledge, more than 100 W of average power are transmitted through a noble-gas-filled hollow fiber. After pulse compression of 81 fs, 93 μJ pulses are obtained at a 1 MHz repetition rate...
  8. doi request reprint Coherently-combined two channel femtosecond fiber CPA system producing 3 mJ pulse energy
    Arno Klenke
    Institute of Applied Physics, Friedrich Schiller University Jena, Albert Einstein Str 15, 07745 Jena, Germany
    Opt Express 19:24280-5. 2011
    ..Pulse durations as short as 470 fs and pulse energies of 3 mJ, corresponding to 5.4 GW of peak power, have been achieved at an average power of 30 W...
  9. ncbi request reprint Enhancing the macroscopic yield of narrow-band high-order harmonic generation by fano resonances
    Jan Rothhardt
    Institute of Applied Physics, Abbe Center of Photonics, Friedrich Schiller Universitat Jena, Albert Einstein Strasse 15, 07745 Jena, Germany and Helmholtz Institute Jena, Fröbelstieg 3, 07743 Jena, Germany
    Phys Rev Lett 112:233002. 2014
    ..The presented mechanism can be employed for tailoring and controlling the high harmonic emission of manifold target materials. ..
  10. doi request reprint Thermal effects in high average power optical parametric amplifiers
    Jan Rothhardt
    Institute of Applied Physics, Abbe Center of Photonics, Friedrich Schiller University Jena, Jena 07745, Germany
    Opt Lett 38:763-5. 2013
    ..Guidelines for further power scaling of OPAs and other nonlinear devices are given...
  11. doi request reprint Control of nonlinear spectral phase induced by ultra-broadband optical parametric amplification
    Stefan Demmler
    Institute of Applied Physics, Abbe Center of Photonics, Friedrich Schiller University Jena, Albert Einstein Strasse 15, 07745 Jena, Germany
    Opt Lett 37:3933-5. 2012
    ..In contrast, operation at degeneracy enables almost complete compensation of the OPP by second-order dispersion only...
  12. doi request reprint High-repetition-rate sub-5-fs pulses with 12 GW peak power from fiber-amplifier-pumped optical parametric chirped-pulse amplification
    Steffen Hädrich
    Friedrich Schiller University Jena, Institute of Applied Physics, Jena, Germany
    Opt Lett 36:313-5. 2011
    ..Precise pulse shaping is used to compress the pulses to a few percentages of their transform limit. Assuming diffraction limited focusing (d<2 μm), peak intensities as high as 10(18) W/cm(2) can be reached...
  13. doi request reprint Generation of high quality, 1.3 cycle pulses by active phase control of an octave spanning supercontinuum
    Stefan Demmler
    Institute of Applied Physics, Friedrich Schiller University Jena, Albert Einstein Straße 15, 07745 Jena, Germany
    Opt Express 19:20151-8. 2011
    ..Due to the high stability and the smooth spectral intensity and phase distribution of the generated SC, an excellent temporal pulse quality exhibiting a pulse contrast of 14 dB with respect to the pre- and post-pulses is achieved...