Affiliation:
1. Istituto di Fotonica e Nanotecnologie-CNR
2. Macquarie University
3. Xiangtan University
4. Dipartimento di Fisica-Politecnico di Milano
5. Department of Electrical and Information Engineering
Abstract
We report a comprehensive characterization of tunable continuous-wave (CW) and passive Q-switching laser performance of Dy-doped zirconium fluoride fiber emitting around 3 µm. The in-band pumped CW laser operation is investigated for pump wavelengths varying from 2.7 µm to 2.825 µm, for fiber lengths ranging from 0.4 m to 2 m, and for output coupling efficiency from 10% to 50%, leading to a maximum laser slope efficiency of 44% and a tuning range larger than 300 nm. With Findlay-Clay analysis and Rigrod analyses, optimal cavity parameters are retrieved, paving the way for further optimizations in performance. The passively Q-switched laser operation of Dy-doped fluoride fiber is achieved employing a semiconductor saturable absorber mirror for the first time, demonstrating a stable operation with a minimum pulse duration of 580 ns, a highest repetition frequency of 103 kHz and a pulse energy up to 300 nJ.
Funder
Extreme Light Infrastructure Nuclear Physics
Ministero dell’Istruzione, dell’Università e della Ricerca
China Scholarship Council
Subject
Electronic, Optical and Magnetic Materials
Cited by
11 articles.
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