High-power thulium fiber laser Q switched with single-layer graphene

• Main Authors: Tang, Yulong, Yu, Xuechao, Li, Xiaohui, Yan, Zhiyu, Wang, Qi Jie
• Other Authors: School of Electrical and Electronic Engineering
• Format: Article
• Language: English
• Published: 2014
• Subjects: DRNTU::Engineering::Electrical and electronic engineering::Optics, optoelectronics, photonics
• Online Access: https://hdl.handle.net/10356/104019; http://hdl.handle.net/10220/19486
• Institution: Nanyang Technological University

We report high-power 2 μm Tm3+ fiber lasers passively Q switched by double-piece single-layer graphene transferred onto a glass plate. Through manipulating intracavity laser beam size and increasing pump ratios, an average power of 5.2 W is directly achieved from the laser oscillator with an optical...