Spontaneous laser-line sweeping in Ho-doped fiber laser

Jan Aubrecht; Pavel Peterka; Pavel Koška; Pavel Honzátko; Michal Jelínek Jr.; Michal Kamrádek; Milan Frank; Václav Kubeček; Ivan Kašík

doi:10.1117/12.2249486

22 February 2017 Spontaneous laser-line sweeping in Ho-doped fiber laser

Jan Aubrecht, Pavel Peterka, Pavel Koška, Pavel Honzátko, Michal Jelínek Jr., Michal Kamrádek, Milan Frank, Václav Kubeček, Ivan Kašík

Author Affiliations +

Proceedings Volume 10083, Fiber Lasers XIV: Technology and Systems; 100831V (2017) https://doi.org/10.1117/12.2249486
Event: SPIE LASE, 2017, San Francisco, California, United States

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.

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Jan Aubrecht, Pavel Peterka, Pavel Koška, Pavel Honzátko, Michal Jelínek Jr., Michal Kamrádek, Milan Frank, Václav Kubeček, and Ivan Kašík "Spontaneous laser-line sweeping in Ho-doped fiber laser", Proc. SPIE 10083, Fiber Lasers XIV: Technology and Systems, 100831V (22 February 2017); https://doi.org/10.1117/12.2249486

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