J Rothhardt

Summary

Affiliation: Friedrich Schiller University
Country: Germany

Publications

  1. ncbi 500 MW peak power degenerated optical parametric amplifier delivering 52 fs pulses at 97 kHz repetition rate
    J Rothhardt
    Friedrich Schiller University Jena, Institute of Applied Physics, Albert Einstein Str 15, 07745 Jena, Germany
    Opt Express 16:8981-8. 2008
  2. ncbi 80 kHz repetition rate high power fiber amplifier flat-top pulse pumped OPCPA based on BIB3O6
    J Rothhardt
    Friedrich Schiller University Jena, Institute of Applied Physics, Albert Einstein Str 15, 07745 Jena, Germany
    Opt Express 17:2508-17. 2009
  3. ncbi Generation of flattop pump pulses for OPCPA by coherent pulse stacking with fiber Bragg gratings
    J Rothhardt
    Friedrich Schiller University Jena, Institute of Applied Physics, Albert Einstein Str 15, 07745 Jena, Germany
    Opt Express 17:16332-41. 2009
  4. ncbi Compact fiber amplifier pumped OPCPA system delivering Gigawatt peak power 35 fs pulses
    J Rothhardt
    Friedrich Schiller University Jena, Institute of Applied Physics, Albert Einstein Str 15, 07745 Jena, Germany
    Opt Express 17:24130-6. 2009
  5. ncbi Generation of µW level plateau harmonics at high repetition rate
    S Hädrich
    Friedrich Schiller University Jena, Institute of Applied Physics, Albert Einstein Strasse 15, 07745 Jena, Germany
    Opt Express 19:19374-83. 2011
  6. ncbi Improving carrier-envelope phase stability in optical parametric chirped-pulse amplifiers by control of timing jitter
    S Hädrich
    Institute of Applied Physics, Abbe Center of Photonics, Jena 07745, Germany
    Opt Lett 37:4910-2. 2012
  7. ncbi High harmonic generation by novel fiber amplifier based sources
    S Hädrich
    Friedrich Schiller University Jena, Institute of Applied Physics, Jena, Germany
    Opt Express 18:20242-50. 2010
  8. ncbi CW seeded optical parametric amplifier providing wavelength and pulse duration tunable nearly transform limited pulses
    S Hädrich
    Friedrich Schiller University Jena, Institute of Applied Physics, Albert Einstein Str 15, 07745, Jena
    Opt Express 18:3158-67. 2010
  9. ncbi Single-polarization ultra-large-mode-area Yb-doped photonic crystal fiber
    O Schmidt
    Friedrich Schiller University, Institute of Applied Physics, Albert Einstein Str 15, 07745 Jena, Germany
    Opt Express 16:3918-23. 2008
  10. ncbi Multi-gigawatt ultrashort pulses at high repetition rate and average power from two-stage nonlinear compression
    S Hädrich
    Friedrich Schiller University Jena, Institute of Applied Physics, Albert Einstein Strasse 15, 07745 Jena, Germany
    Opt Express 19:7546-52. 2011

Collaborators

Detail Information

Publications10

  1. ncbi 500 MW peak power degenerated optical parametric amplifier delivering 52 fs pulses at 97 kHz repetition rate
    J Rothhardt
    Friedrich Schiller University Jena, Institute of Applied Physics, Albert Einstein Str 15, 07745 Jena, Germany
    Opt Express 16:8981-8. 2008
    ..Further scaling in terms of average power and pulse energy seems possible and will be discussed, since both concepts involved, the fiber laser and the parametric amplifier have the reputation to be immune against thermo-optical effects...
  2. ncbi 80 kHz repetition rate high power fiber amplifier flat-top pulse pumped OPCPA based on BIB3O6
    J Rothhardt
    Friedrich Schiller University Jena, Institute of Applied Physics, Albert Einstein Str 15, 07745 Jena, Germany
    Opt Express 17:2508-17. 2009
    ..The stretched Ti:Sapphire oscillator pulses are amplified up to a pulse energy of 25 microJ. Recompression with a grating compressor yields 50.7 fs pulses with 16.2 microJ pulse energy...
  3. ncbi Generation of flattop pump pulses for OPCPA by coherent pulse stacking with fiber Bragg gratings
    J Rothhardt
    Friedrich Schiller University Jena, Institute of Applied Physics, Albert Einstein Str 15, 07745 Jena, Germany
    Opt Express 17:16332-41. 2009
    ..In contrast to other pulse shaping techniques the presented setup is robust, alignment free, provides excellent beam quality and is also suitable for pulse durations up to several nanoseconds...
  4. ncbi Compact fiber amplifier pumped OPCPA system delivering Gigawatt peak power 35 fs pulses
    J Rothhardt
    Friedrich Schiller University Jena, Institute of Applied Physics, Albert Einstein Str 15, 07745 Jena, Germany
    Opt Express 17:24130-6. 2009
    ..The two stage optical parametric amplifier delivers 35 fs pulses with 53 microJ pulse energy and 1.1 GW peak power at 40 kHz repetition rate. Additionally, the scaling potential of this approach is discussed...
  5. ncbi Generation of µW level plateau harmonics at high repetition rate
    S Hädrich
    Friedrich Schiller University Jena, Institute of Applied Physics, Albert Einstein Strasse 15, 07745 Jena, Germany
    Opt Express 19:19374-83. 2011
    ..Additionally, we show the potential for few-cycle pulses at high average power and repetition rate that may enable water-window harmonics at unprecedented repetition rate...
  6. ncbi Improving carrier-envelope phase stability in optical parametric chirped-pulse amplifiers by control of timing jitter
    S Hädrich
    Institute of Applied Physics, Abbe Center of Photonics, Jena 07745, Germany
    Opt Lett 37:4910-2. 2012
    ..Stabilization of the timing allows the obtainment of a CEP stability of 86 mrad over 40 min at 150 kHz repetition rate...
  7. ncbi High harmonic generation by novel fiber amplifier based sources
    S Hädrich
    Friedrich Schiller University Jena, Institute of Applied Physics, Jena, Germany
    Opt Express 18:20242-50. 2010
    ..High average power few-cycle pulses of a fiber amplifier pumped optical parametric chirped pulse amplifier are used to produce µW level average power for the strongest harmonic at 42.9 nm at a repetition rate of 96 kHz...
  8. ncbi CW seeded optical parametric amplifier providing wavelength and pulse duration tunable nearly transform limited pulses
    S Hädrich
    Friedrich Schiller University Jena, Institute of Applied Physics, Albert Einstein Str 15, 07745, Jena
    Opt Express 18:3158-67. 2010
    ..Variation of the wavelength is achieved by applying a tunable cw seed while the pulse duration can be varied via altering the pump pulse duration. This scheme offers superior flexibility and scaling possibilities...
  9. ncbi Single-polarization ultra-large-mode-area Yb-doped photonic crystal fiber
    O Schmidt
    Friedrich Schiller University, Institute of Applied Physics, Albert Einstein Str 15, 07745 Jena, Germany
    Opt Express 16:3918-23. 2008
    ..To the best of our knowledge this fiber design has the largest mode-field-diameter ever reported for polarizing or even polarization maintaining rare-earth-doped double-clad fibers...
  10. ncbi Multi-gigawatt ultrashort pulses at high repetition rate and average power from two-stage nonlinear compression
    S Hädrich
    Friedrich Schiller University Jena, Institute of Applied Physics, Albert Einstein Strasse 15, 07745 Jena, Germany
    Opt Express 19:7546-52. 2011
    ..Numerical simulations, agreeing well with experimental data, yield a peak power of 5.7 GW at a pulse energy of 380 µJ making this an interesting source for high harmonic generation at high repetition rate and average power...