Sc2O3 PVA Film for Switching and Mode-Locking Application in Erbium-Doped Fiber Laser Cavity

• Main Authors: Zulkipli, Nur Farhanah, Samsamnun, Farina Saffa Mohamad, Rosol, Ahmad Haziq Aiman, Altuncu, Ahmet, Rusdi, Muhammad Farid Mohd, Mahyuddin, Mohamad Badrol Hisyam, Abdul Khudus, Muhammad Imran Mustafa, Hanafi, Effariza, Harun, Sulaiman Wadi
• Format: Article
• Published: Taylor & Francis 2020
• Subjects: QC Physics; TK Electrical engineering. Electronics Nuclear engineering
• Online Access: http://eprints.um.edu.my/25684/; https://doi.org/10.1080/01468030.2020.1805529

We generated Q-switched and mode-locked pulses by making use of the saturable absorption characteristic of scandium oxide (Sc2O3) film, which was obtained by embedding Sc2O3 nanopowders into polyvinyl alcohol film. The Q-switched laser operated at center wavelength of 1560.5 nm with the maximum pulse energy of 65.6 nJ and 4.4% slope efficiency. With the addition of a 200 m extra single-mode fiber in the ring cavity, a self-starting mode-locked EDFL was implemented. The mode-locked pulses operated at a central wavelength of 1565.4 nm with a repetition rate of 1.0 MHz and a pulse duration of 3.50 ps. © 2020 Taylor & Francis.