Reverse spontaneous laser line sweeping in ytterbium fiber laser. (17th January 2017)

• Record Type: Journal Article
• Authors: Navratil, P; Peterka, P; Honzatko, P; Kubecek, V
• Is Part Of: Laser physics letters. Volume 14:Number 3(2017:Mar.)
• Publication Date: 2017-01-17
• Subjects: laser line sweeping -- ytterbium -- fiber lasers -- laser instabilities; Lasers -- Periodicals; Physics -- Periodicals; 621.366
• DOI: 10.1088/1612-202X/aa548d
• Languages: English
• ISSNs: 1612-2011

Abstract

Abstract: Self-induced laser line sweeping of various regimes of sweep direction is reported for an experimental ytterbium fiber laser. The regimes involve sweeping from shorter to longer wavelengths ( 1076 n m → 1083 nm)—so-called normal self-sweeping; from longer to shorter wavelengths ( 1079 n m → 1073 nm)—so-called reverse self-sweeping; and a mixed regime in which a precarious balance of the normal and reverse sweeping exists and the sweep direction can change between consecutive sweeps. The regimes of sweeping were selected by changing the pump wavelength only. A detailed explanation of this sweep direction dynamics is presented based on a semi-empirical model. This model also provides a way to predict the sweep direction of fiber lasers based on other rare-earth-doped laser media.