Integration of an anti-resonant hollow-core fiber with a multimode Yb-doped fiber for high power near-diffraction-limited laser operation

• Main Authors: Li, Huizi, Goel, Charu, Zang, Jichao, Raghuraman, Sidharthan, Chen, Shaoxiang, Muhammad Rosdi Abu Hassan, Chang, Wonkeun, Yoo, Seongwoo
• Other Authors: School of Electrical and Electronic Engineering
• Format: Article
• Language: English
• Published: 2022
• Subjects: Engineering::Electrical and electronic engineering; Fiber Lasers; Antiresonant
• Online Access: https://hdl.handle.net/10356/157737
• Institution: Nanyang Technological University

We proposed and demonstrated mode cleaning in a high-power fiber laser by integrating an anti-resonant hollow-core fiber (AR-HCF) into a multimode laser cavity of an ytterbium (Yb)-doped fiber (YDF). An in-house mode-matched AR-HCF was fusion-spliced to a commercial multimode LMA-YDF, ensuring effic...