Self-induced laser line sweeping and self-pulsing in double-clad fiber lasers in Fabry-Perot and unidirectional ring cavities

Pavel Peterka; Petr Navrátil; Bernard Dussardier; Radan Slavík; Pavel Honzátko; Václav Kubecek

doi:10.1117/12.924298

15 May 2012 Self-induced laser line sweeping and self-pulsing in double-clad fiber lasers in Fabry-Perot and unidirectional ring cavities

Pavel Peterka, Petr Navrátil, Bernard Dussardier, Radan Slavík, Pavel Honzátko, Václav Kubecek

Author Affiliations +

Proceedings Volume 8433, Laser Sources and Applications; 843309 (2012) https://doi.org/10.1117/12.924298
Event: SPIE Photonics Europe, 2012, Brussels, Belgium

Abstract

Rare-earth doped fiber lasers are subject to instabilities and various self-pulsed regimes that can lead to catastrophic damage of their components. An interesting self-pulsing regime accompanied with laser wavelength drift with time is the so called self-induced laser line sweeping (SLLS). Despite the early observations of the SLLS in solid-state ruby lasers, in fiber lasers it was first time mentioned in literature only in 2009 where such a laser wavelength drift with time was observed in a relatively broad range of about 1076 -1084 nm in ring ytterbium-doped fiber laser (YDFL). The main characteristic of the SLLS is the scanning of the laser wavelength from shorter to longer wavelength, spanning over large interval of several nanometers, and instantaneous bounce backward. The period of this sweeping is usually quite long, of the order of seconds. This spectacular effect was attributed to spatial-hole burning caused by standing-wave in the laser cavity. In this paper we present experimental investigation of the SLLS in YDFLs in Fabry-Perot cavity and ring cavities. The SLLS was observed also in erbium-doped fiber laser around 1560 nm. We present for the first time observation of the laser wavelength sweep in reverse direction, i.e., from longer towards shorter wavelengths. It was observed in YDFL around 1080 nm.

Citation Download Citation

Pavel Peterka, Petr Navrátil, Bernard Dussardier, Radan Slavík, Pavel Honzátko, and Václav Kubecek "Self-induced laser line sweeping and self-pulsing in double-clad fiber lasers in Fabry-Perot and unidirectional ring cavities", Proc. SPIE 8433, Laser Sources and Applications, 843309 (15 May 2012); https://doi.org/10.1117/12.924298

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