A. V. Andrianov, M. Yu. Koptev, E. A. Anashkina, S. V. Murav'ev, A. V. Kim, D. S. Lipatov, V. V. Vel'miskin, A. E. Levchenko, M. M. Bubnov, M. E. Likhachev, “Tapered erbium-doped fibre laser system delivering 10 MW of peak power”, Kvantovaya Elektronika, 2019, Volume 49, Number 12,Pages <nobr>1093

This article is cited in 14 papers

Selection of reports presented at the 7th All-Russian Conference on Fiber Optics (8-11 October 2019, Perm) (edited compiled by S.L.Semjonov)

Tapered erbium-doped fibre laser system delivering 10 MW of peak power

A. V. Andrianov^a, M. Yu. Koptev^a, E. A. Anashkina^a, S. V. Murav'ev^a, A. V. Kim^a, D. S. Lipatov^b, V. V. Vel'miskin^c, A. E. Levchenko^c, M. M. Bubnov^c, M. E. Likhachev^c

^a Institute of Applied Physics, Russian Academy of Sciences, Nizhny Novgorod
^b Institute of Chemistry of High-Purity Substances RAS, Nizhnii Novgorod
^c Fiber Optics Research Center of the Russian Academy of Sciences, Moscow

Abstract: We consider a fibre laser system generating ~10-μJ, ~500-fs pulses with a peak power of ~10 MW at a repetition rate of 100 kHz and emission wavelength of 1.56 μm. The system is based on a master oscillator–power amplifier configuration. The amplifier ensures chirped-pulse amplification. The pulses are then compressed by a dispersive grating compressor. The output amplifier stage is based on a specially designed tapered large mode area erbium-doped fibre for suppressing nonlinear effects. The experimental data agree with numerical simulation results for the stretcher, amplifier and compressor. The stretcher and amplifier have been simulated using a generalised nonlinear Schrödinger equation. In addition, numerical simulation results suggest that optimising the stretcher and compressor will potentially allow the peak power of the system to be scaled up to ~30 MW.

Keywords: high peak power fibre laser systems, chirped-pulse amplification, erbium-doped fibre amplifiers, tapered fibre, dispersive grating compressor.

Received: 10.10.2019