Liquid-phase exfoliated graphene-MoS2 based saturable absorber for Q-switched erbium doped fiber laser

• Main Authors: Mohd. Halim, Siti Nabilah, Jasni, Nur Afiqah Husna, Mohamad Taib, Mohamad Fariz, Wan Nawawi, Wan Mohd. Fazli, Ahmad, Fauzan
• Format: Conference or Workshop Item
• Language: English
• Published: 2021
• Subjects: T Technology (General)
• Online Access: http://eprints.utm.my/id/eprint/96153/1/NurAfiqahHusna2021_LiquidPhaseExfoliatedGrapheneMoS2Based.pdf; http://eprints.utm.my/id/eprint/96153/; http://dx.doi.org/10.1088/1742-6596/2075/1/012006

Upon exfoliation from the bulk form, two-dimensional materials have shown ubiquitous properties which are suitable for Q-switched pulsed laser generation. In this research, a successful solution process of graphene-MoS2 nanocomposite saturable absorber through liquid phase exfoliation has been carried out. The method offers a low-cost route for simple and scalable production while providing a promising material quality with on-demand properties and integration flexibility. Stable Q-switched laser operation was realized with graphene-MoS2 hybrid saturable absorber. The pulse duration was measured to be 6 µs with repetition rate of 63.92 kHz corresponding to a peak power and pulse energy of 5.05 mW and 30.87 nJ, respectively.