Active elements in the form of thin rods of square cross section for multichannel laser amplifiers
-
Published:2021-08-01
Issue:8
Volume:51
Page:708-711
-
ISSN:1063-7818
-
Container-title:Quantum Electronics
-
language:
-
Short-container-title:Quantum Electron.
Abstract
Abstract
We study thermally induced phase distortions of laser radiation in active elements in the form of thin rods of square cross section. The absence of aberrations and beam quality deterioration is demonstrated for these elements, due to which they can be used along with rods having a round cross section, differing from the latter by much higher technological efficiency of fabrication and mounting in the cooling system. A concept of compact and reliable multichannel solid-state amplifier based on such active elements is proposed, which allows one to use a multichannel fibre laser as a master system.
Subject
Electrical and Electronic Engineering,Atomic and Molecular Physics, and Optics,Statistical and Nonlinear Physics,Electronic, Optical and Magnetic Materials