A. P. Pogoda, A. A. Sergeev, I. S. Khakhalin, E. E. Popov, N. L. Istomina, A. S. Boreysho, V. M. Petrov, “Holographic reflective Bragg gratings of gain and their role in the operation of high-power pulsed lasers”, Kvantovaya Elektronika, 2020, Volume 50, Number 7,Pages <nobr>658

This article is cited in 5 papers

Holographic technologies (selection of papers from the HOLOEXRO 2019 conference)

Holographic reflective Bragg gratings of gain and their role in the operation of high-power pulsed lasers

A. P. Pogoda^a, A. A. Sergeev^a, I. S. Khakhalin^a, E. E. Popov^ab, N. L. Istomina^c, A. S. Boreysho^a, V. M. Petrov^b

^a Baltic State Technical University, St. Petersburg
^b St. Petersburg National Research University of Information Technologies, Mechanics and Optics
^c Moscow State University of Geodesy and Cartography

Abstract: The influence of reflective Bragg gratings that are formed in an active medium due to the spatial periodic modulation of gain on the spectral properties of lasing are investigated by an example of a pulsed Nd : YAG laser. It is shown that, at a certain choice of the formation regime of reflective gratings of gain, the lasing bandwidth can be reduced by a factor of 3 – 5, with a corresponding increase in the pulse energy and significant improvement of spatial beam quality.

Keywords: Bragg gratings, high-power pulsed lasers.

Received: 18.02.2020
Revised: 06.04.2020