Pure gold saturable absorber for generating Q-switching pulses at 2 µm in Thulium-doped fiber laser cavity

• Main Authors: Muhammad, Ahmad Razif, Zakaria, Rozalina, Ahmad, Muhammad Taufiq, Wang, Pengfei, Harun, Sulaiman Wadi
• Format: Article
• Published: Elsevier 2019
• Subjects: QC Physics; TK Electrical engineering. Electronics Nuclear engineering
• Online Access: http://eprints.um.edu.my/23948/; https://doi.org/10.1016/j.yofte.2019.02.010

We experimentally demonstrate Q-switched Thulium-doped fiber laser operating at 1949.19 nm using pure gold saturable absorber (Au-SA) as a Q-switcher. The Au-SA was fabricated by depositing gold particles molecules using electron beam evaporation on the surface of a polyvinyl alcohol (PVA) film. Sub...