Max Born Institute for Nonlinear Optics and Short Pulse Spectroscopy
Max Born Institute for Nonlinear Optics and Short Pulse Spectroscopy

MBI Staff Member – Personal info

Dr. Uwe Griebner

uwe.griebner(at)mbi-berlin.de
+49 30 6392 1457

C2: Solid State Light Sources
Building C, 2.22

Position

Project Coordinator 4.1: Implementation of Lasers and Measuring Techniques

Research

Development of advanced ultrashort pulse lasers, amplifiers, and parametric devices operating in the near- and mid-IR wavelength ranges including components and complete systems for direct implementation within other projects at MBI.

An example is the development of novel CPA laser sources emitting around 2 µm wavelength. This laser system operating at kilohertz repetition rate will serve as driver for OPCPA in the mid-IR. Figure (a) shows the simulated bifurcation diagram of a Ho:YLF regenerative amplifier (RA) at a 1 kHz repetition rate and 24 round trips indicating the most interesting operation regimes, i.e., stable double-pulsing (yellow coded bar) and the single-energy regime (green coded bar) beyond the final bifurcation point (BP final). Based on our model the RA is designed for operation in the single-energy regime beyond BPfinal. The measured complete RA bifurcation diagram of the re-designed RA at 1 kHz and 24 round trips is presented in Fig. (b). It agrees well with our numerical simulations [Fig. (a)]. Only the predicted multi-pulsing between 20 and 30 W pump power is less pronounced in the experiment. The highest pulse energy of 12 mJ can be extracted in the stable double-pulsing regime in the upper bifurcation branch (yellow coded bar), however at 0.5 kHz, the half of the repetition rate. BPfinal appears at a pump power of 47 W and denotes the transition to the single-energy regime where any multi-stabilities and chaotic behavior have been overcome. The extracted RA pulse energy of 9.7 mJ is the by far highest reported for 2-µm RAs operating in the single-energy regime. Taking into account the applied pump power of 50 W, the extraction efficiency is as high as 19.5%. Performing the transition from the stable double-pulsing to the single-energy regime, the RA’s pulse-to-pulse stability is further improved with a rms value <0.5%. Figure (c) shows the corresponding pulse stability measurement in the vicinity of BPfinal and beyond in the single-energy regime (green coded bar).

Curriculum vitae

since 1992 Max Born Institute for Nonlinear Optics and Short Pulse Spectroscopy, Berlin, Germany, staff scientist and project coordinator.

1993 - 1996 Ph.D. thesis at the Optical Institute, Technical University Berlin, Germany, with Prof. Horst Weber,
Title of thesis: Fiber bundle lasers with high average power,

1989 - 1992 Institute of Nonlinear Optics and Short Pulse Spectroscopy, Berlin, Germany, staff scientist,

1986 - 1989 Institute of Mechanics, Chemnitz, Germany, staff scientist,

1981 - 1986 Diploma degree in Physics; Physics Department, University of Jena, Germany,
Title of thesis: Characterization of lattice distorsions in LiF crystals,

MBI Publications

  1. Continuous-wave and mode-locked operation of an in-band pumped Tm,Ho,Lu:CaGdAlO4 laser

    H. Zeng, W. Xue, R. T. Murray, W. Chen, Z. Pan, L. Wang, C. Cui, P. Loiko, X. Mateos, U. Griebner, V. Petrov

     Applied Sciences 13 (2023) 12927/1-10
  2. Mode-locking of a Tm,Ho:CALYGO laser delivering 50 fs pulses at 2.08 μm

    H. Ding, J. Liu, Y. Wang, N. Zhang, Z. Wang, Y. Zhao, X. Xu, Y. Xue, J. Xu, U. Griebner, V. Petrov

     Optics Letters 48 (2023) 6267-6271
  3. Highly efficient lasing and thermal properties of Tm:Y2O3 and Tm:(Y,Sc)2O3 ceramics

    K. Eremeev, P. Loiko, R. Maksimov, V. Shitov , V. Osipov, D. Vakalov, V. Lapin, P. Camy, W. Chen, U. Griebner, V. Petrov, A. Braud

     Optics Letters 48 (2023) 3901-3904
  4. Spectroscopy and 2.8 µm laser operation of disordered Er:CLNGG crystals

    S. Normani, P. Loiko, Z. Pan, E. Dunina, L. Fomicheva, A. Kornienko, A. Braud, W. Chen, U. Griebner, V. Petrov, P. Camy

     Optics Letters 48 (2023) 2567-2570
  5. Thermodynamic and nonlinear optical analysis of solid-state multipass cells for compression of picosecond pulses in the 2-μm range

    C. Mei, U. Griebner, G. Steinmeyer

     Physical Review A 106 (2022) 053527/1-9
  6. Spectroscopy of solid-solution transparent sesquioxide laser ceramic Tm:LuYO3

    K. Eremeev, P. Loiko, A. Braud, P. Camy, J. Zhang, X. Xu, Y. Zhao, P. Liu, S. Balabanov, E. Dunina, A. Kornienko, L. Fomicheva, X. Mateos, U. Griebner, V. Petrov, L. Wang, W. Chen

     Optical Materials Express 12 (2022) 3749-3762
  7. SESAM mode-locked Tm:Y2O3 ceramic laser

    N. Zhang, S. Liu, Z. Wang, J. Liu, X. Xu, J. Xu, J. Wang, P. Liu, J. Ma, D. Shen, D. Tang, H. Lin, J. Zhang, W. Chen, Y. Zhao, U. Griebner, V. Petrov

     Optics Express 30 (2022) 29531-29538
  8. Few-cycle 65-μJ pulses at 11.4 μm for ultrafast nonlinear longwave-infrared spectroscopy

    P. Fuertjes, M. Bock, L. von Grafenstein, D. Ueberschaer, U. Griebner, T. Elsaesser

     Optica 9 (2022) 1303-1306
  9. Growth, structure, and polarized spectroscopy of monoclinic Er3+:MgWO4 crystal

    L. Zhang, L. Basyrova, P. Loiko, P. Camy, Z. Lin, G. Zhang, S. Slimi, R. M. Solé, X. Mateos, M. Aguiló, F. Díaz, E. Dunina, A. Kornienko, U. Griebner, V. Petrov, L. Wang, W. Chen

     Optical Materials Express 12 (2022) 2028-2040
  10. Watt-level femtosecond Tm-doped “mixed” sesquioxide ceramic laser in-band pumped by a Raman fiber laser at 1627 nm

    N. Zhang, Z. Wang, S. Liu, W. Jing, H. Huang, Z. Huang, K. Tian, Z. Yang, Y. Zhao, U. Griebner, V. Petrov, W. Chen

     Optics Express 30 (2022) 23978/1-8