Gain-switching pulse generation of a thulium-doped fiber laser pumped at 1550nm

Jacek Swiderski; Maria Maciejewska; Wieslaw Pichola; Jacek Kwiatkowski; Marcin Mamajek

doi:10.1117/12.2011696

22 January 2013 Gain-switching pulse generation of a thulium-doped fiber laser pumped at 1550nm

Jacek Swiderski, Maria Maciejewska, Wieslaw Pichola, Jacek Kwiatkowski, Marcin Mamajek

Proceedings Volume 8702, Laser Technology 2012: Progress in Lasers; 87020L (2013) https://doi.org/10.1117/12.2011696
Event: Tenth Symposium on Laser Technology, 2012, Szczecin, Poland

Abstract

Pulsed thulium-doped silica fiber laser operating at a wavelength of 1994.8 nm was developed. The laser was fast gain-switched by 1.55-μm radiation generated from a fiber amplifier system seeded by a directly modulated distributed feedback semiconductor laser. The Tm-doped fiber laser delivered stable nanosecond pulses at a repetition rate ranging from 50 kHz to 300 kHz. The maximum average output power as high as 1.08 W with a slope efficiency of 49% for the repetition rate of 100 kHz was reported. The shortest stable pulses recorded had a width of (20-25) ns and the energy of <15 μJ. The laser system was developed in all-fiber architecture, thus providing robustness, compactness, high insensitivity to atmospheric conditions (dust, vibrations, humidity).

Citation Download Citation

Jacek Swiderski, Maria Maciejewska, Wieslaw Pichola, Jacek Kwiatkowski, and Marcin Mamajek "Gain-switching pulse generation of a thulium-doped fiber laser pumped at 1550nm", Proc. SPIE 8702, Laser Technology 2012: Progress in Lasers, 87020L (22 January 2013); https://doi.org/10.1117/12.2011696

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KEYWORDS

Fiber lasers

Pulsed laser operation

Fiber Bragg gratings

Fiber amplifiers

Optical amplifiers

Laser development

Semiconductor lasers

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