All-fiber short-wavelength tunable mode-locked fiber laser using normal dispersion thulium-doped fiber

• Main Authors: Chen, Shaoxiang, Chen, Yuhao, Liu, Kun, Sidharthan, Raghuraman, Li, Huizi, Chang, Chen Jian, Wang, Qi Jie, Tang, Dingyuan, Yoo, Seongwoo
• Other Authors: School of Electrical and Electronic Engineering
• Format: Article
• Language: English
• Published: 2020
• Subjects: Engineering::Electrical and electronic engineering; Fiber Lasers; Normal Dispersion
• Online Access: https://hdl.handle.net/10356/141563
• Institution: Nanyang Technological University

We report an all-fiber high pulse energy ultrafast laser and amplifier operating at the short wavelength side of the thulium (Tm) emission band. An in-house W-type normal dispersion Tm-doped fiber (NDTDF) exhibits a bending-induced distributed short-pass filtering effect that efficiently suppresses...