Generation of dark, Q-switched and bright pulses using erbium-ytterbium-thulium co-doped fiber

• Main Authors: Lau, Kuen Yao, Mohd Yusoff, Norita, Abdul Hadi, Muhamad Amir Waliuddin, Abas, Ahmad Fauzi, Alresheedi, Mohammed Thamer, Mahdi, Mohd Adzir
• Format: Article
• Language: English
• Published: Elsevier 2020
• Online Access: http://psasir.upm.edu.my/id/eprint/89100/1/DARK.pdf; http://psasir.upm.edu.my/id/eprint/89100/; https://www.sciencedirect.com/science/article/pii/S0030399219313817

We demonstrate the generation of dark and bright pulses in a Q-switched laser using an erbium-ytterbium-thulium co-doped fiber. By manipulating pump power while maintaining lasing wavelength at 1571 nm, dark and bright pulses were observed at pump power thresholds 94.1 and 1770 mW with pulse duratio...