Fiber lasers and non-linear optics

Focus

The research team deals with investigation of high power fiber lasers and their use for material processing, medicine and nonlinear optics. The main topics are laser beam combining, generation and amplification of optical pulses, guiding the light and its interaction with materials. High laser beam power achievable with fiber lasers allows for investigation of nonlinear effects like difference frequency generation. Difference frequency generation in periodically poled KTP crystals can be used to generate mid-infared radiation for the use in laser spectroscopy and metrology.

Research projects

• Low-phonon energy transparent ceramic luminophores emitting in the short- and mid-infrared
• Transparent ceramics optical fibers for lasers operating around 2.9 μm
• Novel nanostructured optical fibers for fiber lasers operating at dual wavelengths
• Fiber optic amplifier for wavelengths beyond L-band
• Light at the service of society (Programme of Strategy AV21)

Complete overview of projects

Publications

1. M. Franczyk, D. Pysz, R. Stepien, J. Cimek, R. Kasztelanic, F.L. Chen, M. Klimczak, L. Zhao, I. Kasik, P. Peterka, R. Buczynski. Dual band active nanostructured core fiber for two-color fiber laser operation. Journal of Lightwave Technology. 40 (2022) 7180–7190. Link
2. J. Petráček, V. Kuzmiak. Bound states in the continuum in waveguide arrays within a symmetry classification scheme. Vol. 30, No. 20. Optics Express 35712 (2022). Link 
3. D.C. Kirsch, A. Bednyakova, P. Varak, P. Honzatko, B. Cadier, T. Robin, A. Fotiadi, P. Peterka, M. Chernysheva. Gain-controlled broadband tuneability in self-mode-locked Thulium-doped fibre laser. Commun Phys. 5 (2022) 1–10. Link
4. P. Vařák, M. Kamrádek, J. Mrázek, O. Podrazký, J. Aubrecht, P. Peterka, P. Nekvindová, I. Kašík. Luminescence and laser properties of RE-doped silica optical fibers: The role of composition, fabrication processing, and inter-ionic energy transfers. Optical Materials: X, Vol. 15, 100177 (2022). Link
5. J. Čtyroký, J. Petráček. Photonic integrated circuits with bound states in the continuum: comment. Optica, Vol. 9, No. 7, pp. 681-682 (2022). Link

Complete overview of publications