High energy ultrafast laser at 2 μm using dispersion engineered Thulium-doped fiber

• Main Authors: Chen, Yuhao, Chen, Shaoxiang, Sidharthan, Raghuraman, Cheng, Chen Jian, Liu, Kun, Rao, Shreesha D. S., Bang, Ole, Wang, Qijie, Tang, Dingyuan, Yoo, Seongwoo
• Other Authors: School of Electrical and Electronic Engineering
• Format: Article
• Language: English
• Published: 2021
• Subjects: Engineering::Electrical and electronic engineering; Specialty Fiber; Fiber Lasers
• Online Access: https://hdl.handle.net/10356/147101
• Institution: Nanyang Technological University

We report on demonstration of high energy pulse laser at 2 μm by employing a normal dispersion fiber attained by a waveguide dispersion engineering. The normal dispersion fiber has a W-type refractive index profile, with a Thulium(Tm)-doped core. In contrast to a strong anomalous dispersion at 2 μm...