Self-induced laser line sweeping and self-pulsing in rare-earth doped fiber lasers

0396716 - ÚFE 2014 RIV US eng C - Conference Paper (international conference)
Navrátil, Petr - Vojtíšek, Petr - Peterka, Pavel - Honzátko, Pavel - Kubeček, V.
Self-induced laser line sweeping and self-pulsing in rare-earth doped fiber lasers.
CPS 2012. 18th Czech-Polish-Slovak Optical Conference on Wave and Quantum Aspects of Contemporary Optics (Proceedings of SPIE Vol.8697). Bellingham: SPIE, 2012. ISBN 978-0-8194-9481-8.
[18th Czech-Polish-Slovak Optical Conference on Wave and Quantum Aspects of Contemporary Optics. Ostravice (CZ), 03.09.2012-07.09.2012]
R&D Projects: GA MŠMT ME10119; GA ČR GAP205/11/1840
Institutional support: RVO:67985882
Keywords : Laser line sweeping * Fiber lasers * Er-doped * Yb-doped
Subject RIV: JA - Electronics ; Optoelectronics, Electrical Engineering

We report laser line self-sweeping phenomenon in rare-earth doped fiber lasers. The effect of self-sweeping is observed in erbium-doped fiber laser and also in the ytterbium-doped one. The former, having linear layout, is core-pumped by laser diode (LD) at 980 nm. Laser cavity is formed with fiber loop mirror and angle cleaved fiber end. Laser operation is delimited by tunable filter; we observed sweeping regime in 0.5 nm wide interval defined by the filter. Yb-doped allfiber laser has linear layout as well. Laser is cladding-pumped by LD at about 976 nm; cavity is constrained by rightangle cleaved fibers. We observed laser line sweeping having a range of 6 - 8 nm. We characterized both lasers with respect to sweeping properties thoroughly. We present output laser line wavelength and instant output intensity versus time; we show dependence of sweeping range, sweeping rate, and sweeping period on output laser power and pump laser temperature (pump laser wavelength)
Permanent Link: http://hdl.handle.net/11104/0224450