H. Ahmad, B. Nizamani, A.D. Azam, M.Z. Samion, M. Yasin, S. Sun
In this work, we demonstrated a mode-locked fiber laser operating in the O-band region using nickel phosphorus trisulfide (NiPS3) as a saturable absorber (SA) for the first time. An arc-shaped fiber was coated with a layer of NiPS3 to serve as the SA which was then integrated into a praseodymium (Pr3+)-doped fluoride fiber laser (PDFFL) cavity for signal emission at 1.3 µm. The mode-locked laser operates at a center wavelength of 1302.3 nm, around the zero-dispersion wavelength. The mode-locked PDFFL has a repetition rate and signal-to-noise ratio (SNR) of 0.403 MHz and 55 dB, respectively. Ultrashort pulses of 370 fs were generated using the NiPS3-SA with a pulse energy of 17.1 nJ and a peak power of 46.2 kW. The NiPS3-SA in our work has shown the potential of this 2D nanomaterial ability to generate mode-locked pulses at 1.3 µm, which was rarely explored. © 2022
Photonics Research Centre, Universiti Malaya, Kuala Lumpur, 50603, Malaysia; Physics Department, Faculty of Science, Universiti Malaya, Kuala Lumpur, 50603, Malaysia; Department of Physics, Faculty of Mathematics and Natural Sciences, Universitas Negeri Malang, Jalan Semarang 5, Malang, 65145, Indonesia; Physics Department, Faculty of Science and Technology, Airlangga University, Surabaya, 60115, Indonesia; Collaborative Innovation Center for Green Intelligent Laser Manufacturing Technology and Equipment of Shandong Province, School of Mechanical and Automotive Engineering, Qingdao University of Technology, Qingdao, 266520, China
