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Proceedings Paper

Spontaneous laser-line sweeping in Ho-doped fiber laser
Author(s): Jan Aubrecht; Pavel Peterka; Pavel Koška; Pavel Honzátko; Michal Jelínek; Michal Kamrádek; Milan Frank; Václav Kubeček; Ivan Kašík
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Paper Abstract

Spontaneous laser-line sweeping refers to fiber laser instabilities with regular laser wavelength drift within a broad range that may exceed 10 nm; other characteristics of the laser output are sustained relaxation self-pulsing and narrow spectral linewidth. The laser wavelength drift is caused by standing-wave in the cavity; it can be regarded as a special case of mode instability of longitudinal modes of the laser resonator. Self-sweeping was observed so far in Yb, Er, Tm and Bidoped fiber lasers. We report on Ho-doped fiber laser self-sweeping in interval of 3-5 nm near 2100 nm. The sweeping rate was typically 0.7-0.9 nm/s. The thulium-doped fiber lasers at around 2030 nm and 1950 nm were tested as pump sources. The self-sweeping was registered by FTIR spectrometer and the data processing is discussed.

Paper Details

Date Published: 22 February 2017
PDF: 6 pages
Proc. SPIE 10083, Fiber Lasers XIV: Technology and Systems, 100831V (22 February 2017); doi: 10.1117/12.2249486
Show Author Affiliations
Jan Aubrecht, Institute of Photonics and Electronics of the ASCR, v.v.i. (Czech Republic)
Pavel Peterka, Institute of Photonics and Electronics of the ASCR, v.v.i. (Czech Republic)
Pavel Koška, Institute of Photonics and Electronics of the ASCR, v.v.i. (Czech Republic)
Pavel Honzátko, Institute of Photonics and Electronics of the ASCR, v.v.i. (Czech Republic)
Michal Jelínek, Czech Technical Univ. in Prague (Czech Republic)
Michal Kamrádek, Institute of Photonics and Electronics of the ASCR, v.v.i. (Czech Republic)
Czech Technical Univ. in Prague (Czech Republic)
Milan Frank, Czech Technical Univ. in Prague (Czech Republic)
Václav Kubeček, Czech Technical Univ. in Prague (Czech Republic)
Ivan Kašík, Institute of Photonics and Electronics of the ASCR, v.v.i. (Czech Republic)


Published in SPIE Proceedings Vol. 10083:
Fiber Lasers XIV: Technology and Systems
Craig A. Robin; Ingmar Hartl, Editor(s)

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