Q-Switched Thulium-Doped Fiber Laser with Pure Titanium-Film-Based Saturable Absorber
Document Type
Article
Publication Date
1-1-2019
Abstract
We demonstrate the generation of Q-switching pulse train in thulium-doped fiber laser (TDFL) cavity by employing titanium-based saturable absorber (Ti-SA). The Ti-SA was fabricated by depositing titanium particles molecules using electron beam evaporation on the surface of a polyvinyl alcohol (PVA) film. Subsequently, stable Q-switched pulses were obtained within the 1,552 nm pump power range from 272.1 to 467 mW, with repetition rate tuned from 21.8 to 39.1 kHz. At the maximum pump power, the TDFL showed that the pulse duration of 2.22 μs and the maximum pulse energy of 124 nJ. © 2019, © 2019 Taylor & Francis.
Keywords
metal nanoparticles, passive saturable absorber, Q-switching
Divisions
fac_eng,photonics
Funders
University of Malaya under the grant schemes (Grant No: PG004-2016A and FG006-17AFR)
Publication Title
Fiber and Integrated Optics
Volume
38
Issue
2
Publisher
Taylor & Francis