Hi-tech industrial or biotechnological laser applications request for picosecond pulsed 2-μm laser generating sub-1-J pulses in >kHz repetition range. At HiLASE center the development of the laser system with target to generate 1-J picosecond pulses with 1-kHz repetition rate has started. In this paper, we present a concept of the laser system and demonstrate recent results from the first part of the laser – the holmium fiber oscillator. The holmium fiber front-end is pumped by a continuous wave <1-W thulium fiber laser generating at wavelength of 1950-nm. Mode-locking operation in the oscillator is reached by dispersion management in the laser cavity. In this self-starting configuration we reached 45-mW of average power with repetition rate of 22.5-MHz with pulse energy of 2-nJ.
Jitka Černohorská, Michael Písařík, Pavel Peterka, Jan Aubrecht, Reza Amani, Ondřej Novák, Martin Smrž, Michal Jelínek, Antonio Lucianetti, Akira Endo, and Tomáš Mocek, "High-energy subpicosecond 2-um fiber laser," Proc. SPIE 10683, Fiber Lasers and Glass Photonics: Materials through Applications, 1068315 (Presented at SPIE Photonics Europe: April 24, 2018; Published: 17 May 2018); https://doi.org/10.1117/12.2307478.
Conference Presentations are recordings of oral presentations given at SPIE conferences and published as part of the proceedings. They include the speaker's narration with video of the slides and animations. Most include full-text papers. Interactive, searchable transcripts and closed captioning are now available for 2018 presentations, with transcripts for prior recordings added daily.
Search our growing collection of more than 16,000 conference presentations, including many plenaries and keynotes.