Q-switched cladding pumped erbium-ytterbium co-doped fiber laser with molybdenum disulfide saturable absorber

• Main Authors: Babar, M., Harun, Sulaiman Wadi, Yasin, Moh
• Format: Article
• Published: Old City Publishing 2018
• Subjects: QC Physics; TK Electrical engineering. Electronics Nuclear engineering
• Online Access: http://eprints.um.edu.my/22383/; https://www.oldcitypublishing.com/journals/nloqo-home/nloqo-issue-contents/nloqo-volume-49-number-3-4-2018/nloqo-49-3-4-p-277-283/
• Institution: Universiti Malaya

A Q-switched Erbium-Ytterbium co-doped fiber laser (EYDFL) with cladding pumping system is demonstrated by using a Molybdenum disulfide (MoS 2 ) embedded into polyvinyl alcohol (PVA) as a Saturable absorber (SA). The SA was fabricated by liquid phase exfoliation method, embedded into PVA film and integrated into a ring cladding pumped laser cavity to generate stable Q-switched laser at around 1563 nm. The laser has a multimode pump power threshold of 100 mW, a pulse repetition rate tunable within 6.4 kHz to 113.4 kHz, the maximum pulse energy of 96.67 nJ and a minimum pulse duration of 3.39 μs. The result indicates that MoS 2 nanomaterial could become a promising SA for generating Q-switching pulse train in cladding pump laser system.