A. S. Abramov, I. O. Zolotovskii, A. S. Kadochkin, S. G. Moiseev, I. S. Panyaev, D. G. Sannikov, M. S. Yavtushenko, V. V. Svetukhin, A. A. Fotiadi, “Generation of frequency-modulated optical IR pulses in a semiconductor waveguide structure with a realised space charge wave”, Kvantovaya Elektronika, 2022, Volume 52, Number 11,Pages <nobr>1044

Selection of papers presented at the International Workshop on Fibre Lasers (Novosibirsk, 15-19 August 2022) (Compiled and edited by S.L. Semjonov and S.A. Babin)

Generation of frequency-modulated optical IR pulses in a semiconductor waveguide structure with a realised space charge wave

A. S. Abramov^a, I. O. Zolotovskii^ab, A. S. Kadochkin^ab, S. G. Moiseev^ac, I. S. Panyaev^a, D. G. Sannikov^a, M. S. Yavtushenko^a, V. V. Svetukhin^b, A. A. Fotiadi^ad

^a Ulyanovsk State University
^b SPC "Technological Center" MIET
^c Institute of Nanotechnologies of Microelectronics, Russian Academy of Sciences
^d Université de Mons–Hainaut

Abstract: The conditions for amplification and modulation of electromagnetic radiation during its interaction with a space charge wave formed in a semiconductor cylindrical structure are considered. The possibility of implementing the resulting gain G > 10⁵ m^–1, as well as strong phase modulation (chirp) for wave packets propagating on the surface of a semiconductor cylindrical waveguide, is shown. A ring laser scheme is proposed that is capable of generating frequency-modulated subnanosecond pulses with a peak power of over 1 kW and a carrier frequency tunable over a wide spectral range.

Keywords: semiconductor cylindrical waveguide, space charge wave, phase modulation, generation of frequency-modulated pulses.

Received: 16.09.2022