Marko Šajn (Author), Jaka Petelin (Author), Vid Agrež (Author), Matjaž Vidmar (Author), Rok Petkovšek (Author)

Abstract

A distributed feedback (DFB) diode, gain switched to produce pulses from 60 ps at high peak power of over 0.5 W, is used in burst mode to seed a fiber amplifier chain. High seed power, spectral filtering between amplifier stages and pulsed pumping are used to mitigate amplified spontaneous emission (ASE). The effect of pulse pumping synchronized with the seed on the ASE is explored for the power amplifier at low repetition. Different input and output energies at different burst repetition rates are examined and up to 85% reduction in ASE is achieved compared to continuous pumping. Finally, a numerical model is used to predict further reduction of ASE.

Keywords

fiber lasers;laser amplifiers;ytterbium fibers;

Data

Language: English
Year of publishing:
Typology: 1.01 - Original Scientific Article
Organization: UL FS - Faculty of Mechanical Engineering
UDC: 535(045)
COBISS: 14904091 Link will open in a new window
ISSN: 0030-3992
Views: 2709
Downloads: 1151
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Other data

Secondary language: Slovenian
Secondary keywords: vlakenski laserji;laserski ojačevalniki;iterbijeva vlakna;
Type (COBISS): Article
Embargo end date (OpenAIRE): 2018-09-15
Pages: str. 99-103
Issue: ǂVol. ǂ88
Chronology: Feb. 2017
DOI: 10.1016/j.optlastec.2016.09.006
ID: 10991788