Q-Switched Thulium-Doped Fiber Laser with Molybdenum-Aluminum-Boride-Based Saturable Absorber
Document Type
Article
Publication Date
3-1-2023
Abstract
We propose and demonstrate a new Q-switched thulium-doped fiber laser (TDFL) by utilizing a passive saturable absorber (SA) based on Molybdenum-Aluminium boride (MoAlB). The MoAlB is a metal-ceramic-based material; it is embedded in polyvinyl-alcohol (PVA) material to operate as the SA. The laser successfully generates stable Q-switched pulses operating at 1974.7 nm with a maximum repetition rate of 57.7 kHz and a minimum pulse width of 1.79 mu s. A maximum pulse energy of 90.2 nJ is recorded at 436 mW pump power. Our experiment is the first demonstration on the use of MoAlB for the pulse laser generation in the 2 mu m wavelength region.
Keywords
Q-switching, Thulium-doped fiber laser, saturable absorber, Molybdenum-Aluminum boride
Divisions
sch_ecs
Funders
Malaysian Ministry of Higher Education under Grant No. FRGS/1/2019/STG02/UM/01/1
Publication Title
Journal of Russian Laser Research
Volume
44
Issue
2
Publisher
Springer
Publisher Location
ONE NEW YORK PLAZA, SUITE 4600, NEW YORK, NY, UNITED STATES