S. A. Filatova, V. A. Kamynin, I. V. Zhluktova, A. I. Trikshev, N. R. Arutyunyan, M. G. Rybin, E. D. Obraztsova, D. T. Batov, V. S. Voropaev, V. B. Tsvetkov, “Spectral and temporal dynamics of ultrashort pulses in a holmium-doped fibre amplifier”, Kvantovaya Elektronika, 2019, Volume 49, Number 12,Pages <nobr>1108

This article is cited in 13 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)

Spectral and temporal dynamics of ultrashort pulses in a holmium-doped fibre amplifier

S. A. Filatova^a, V. A. Kamynin^a, I. V. Zhluktova^a, A. I. Trikshev^a, N. R. Arutyunyan^ab, M. G. Rybin^ab, E. D. Obraztsova^ab, D. T. Batov^c, V. S. Voropaev^c, V. B. Tsvetkov^ad

^a Prokhorov General Physics Institute of the Russian Academy of Sciences, Moscow
^b Moscow Institute of Physics and Technology (State University), Dolgoprudny, Moscow region
^c Scientific and Educational Center "Photonics and IR Technique", N. E. Bauman Moscow State Technical University, Moscow
^d National Engineering Physics Institute "MEPhI", Moscow

Abstract: We have optimised a hybrid mode-locked holmiumdoped fibre laser and a holmium-doped fibre amplifier for obtaining stable pulses as short as possible. Temporal and spectral characteristics of pulsed light have been measured as functions of pump power. Lasing has been achieved in the wavelength range 2066–2068 nm, with a full width at half maximum of the emission spectrum from 3 to 4 nm. The pulse duration does not exceed 1 ps and the pulse energy ranges from 0.2 to 0.5 nJ. To raise the pulse energy, holmium-doped fibre amplifiers based on two types of active fibre have been used. We have demonstrated a decrease in the width of the central part of the pulse autocorrelation function and considerable broadening of the spectrum of the pulses. The maximum average power at the amplifier output exceeds 200 mW.

Keywords: holmium-doped fibre laser, mode-locking, nonlinear polarisation rotation, hybrid mode-locking, single-walled carbon nanotubes, ultrashort pulses, holmium-doped fibre amplifier, spectral transformation.

Received: 17.10.2019