Mode-locked YDFL using topological insulator bismuth selenide nanosheets as the saturable absorber
Document Type
Article
Publication Date
4-1-2022
Abstract
Fiber lasers have long remained relevant for various applications worldwide in many industries. This paper presents a mode-locked ytterbium-doped fiber laser (YDFL) using our home-made topological insulator Bi2Se3 nanosheets (TI Bi2Se3) as the saturable absorber. The fabricated TI Bi2Se3 is transported to the end of the fiber ferrule using an optical deposition process, which is a key ingredient for initiating a pulsed fiber laser. With a pump power of 211.1 mW, the captured repetition rate and pulse width are 8.3 MHz and 6.2 ns, respectively. The length of the setup configuration is approximately 20 m, which corresponds to an output power measurement of 12.4 mW with a calculated pulse energy of 1.5 nJ. There are no significant Kelly sidebands, but the strong stability of the pulsed laser is defined by a high signal-to-noise ratio (SNR) of around 60.35 dB.
Keywords
Mode-locked fiber laser, Saturable absorber, Topological insulator
Divisions
sch_ecs
Funders
Niche Research Fund Scheme, Universiti Malaysia Sabah (UMS) (SDN00286),Postgraduate Research Grant Scheme (UMSGreat) (GUG0444-1/2020)
Publication Title
Crystals
Volume
12
Issue
4
Publisher
MDPI
Publisher Location
ST ALBAN-ANLAGE 66, CH-4052 BASEL, SWITZERLAND