Q-switched Ytterbium-doped fibre laser using an 8 cm long Hafnium bismuth erbium co-doped fibre saturable absorber

• Main Authors: Rahman, M.F.A., Reddy, P.H., Ahmad, A., Latiff, A.A., Baharom, M.F., Harun, Sulaiman Wadi
• Format: Conference or Workshop Item
• Published: 2021
• Subjects: TK Electrical engineering. Electronics Nuclear engineering
• Online Access: http://eprints.um.edu.my/36085/; https://www.scopus.com/inward/record.uri?eid=2-s2.0-85125572930&doi=10.1088%2f1742-6596%2f2075%2f1%2f012020&partnerID=40&md5=abcd2fd2f7984f3036c427b9b71c53aa
• Institution: Universiti Malaya

In this paper, we present a Q-switched fibre laser at 1069 nm which is induced by an 8 cm long Hafnium bismuth erbium co-doped fibre (HBEDF) saturable absorber (SA). The pulsating laser has a maximum repetition rate of 67 kHz at 175 mW pump power. We obtained the narrowest pulse width of 3.48 μs, the maximum pulse energy of 70.2 nJ, the maximum output power of 4.7 mW and the maximum peak power of 20.1 mW. The Q-switched laser is simple and may found practical applications in medicine and remote sensing. © 2021 Institute of Physics Publishing. All rights reserved.