Based on ZrO2/graphene/ZrO2 Q-switched mid-infrared Er3+:ZBLAN fiber laser. (24th January 2019)

• Record Type: Journal Article
• Authors: Zhang, Wei; Ju, Yao; Ning, Shougui; Wang, Shutong; Yang, Chao; Zhang, Hong; Feng, Guoying; Zhou, Shouhuan
• Is Part Of: Laser physics letters. Volume 16:Number 3(2019:Mar.)
• Publication Date: 2019-01-24
• Subjects: mid-infrared fiber lasers -- Q-switching -- graphene -- ZrO2; Lasers -- Periodicals; Physics -- Periodicals; 621.366
• DOI: 10.1088/1612-202X/aaf89c
• Languages: English
• ISSNs: 1612-2011

Abstract

Abstract: ZrO2 nanoparticles with an average size of ~40 nm are prepared by an electrical arc discharge method. Here, we fabricated a saturable absorber mirror (SAM) by spin-coating ZrO2, graphene and ZrO2 onto a homemade high-reflective mirror. Stable Q-switching operation in Er 3+ :ZBLAN fiber laser is achieved by using the as-prepared ZrO2 /graphene/ ZrO2 SAM. Compared with ZrO2 SAM, the ZrO2 /graphene/ZrO2 SAM has a lower Q-switching threshold and wider range of repetition rates. The maximum average output power of 285 mW is obtained with the repetition rate of 106.61 kHz, pulse width of 0.908 µ s and timing jitter of 0.514% at the pump power of 4.84 W by using the ZrO2 /graphene/ ZrO2 SAM.