Periodic generation of submerged jets during laser heating of the fiber tip

V. I. Yusupov

Institute of Photonic Technologies, Federal Research Centre ‘Crystallography and Photonics’, Russian Academy of Sciences, Москва, Троицк, Россия

Abstract: It has been experimentally found that when the tip of an optical fiber with an absorbing coating is heated by continuous laser radiation with a wavelength of 0.97 $\mu$m, submerged jets are periodically generated in water. Each such jet is formed as a result of the collapse of a gas-vapor bubble arising from the explosive boiling of water. The mechanisms of formation of bubbles and jets are discussed.

Keywords: laser radiation, optical fiber, absorbing coating, explosive boiling, submerged jet.

Received: 08.07.2022
Revised: 30.07.2022
Accepted: 15.08.2022

DOI: 10.21883/PJTF.2022.19.53588.19301

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