Large-mode-area multicore Yb-doped fiber for an efficient high power 976 nm laser

• Main Authors: Li, Huizi, Zang, Jichao, Raghuraman, Sidharthan, Chen, Shaoxiang, Goel, Charu, Xia, Nan, Ishaaya, Amiel A., Yoo, Seongwoo
• Other Authors: School of Electrical and Electronic Engineering
• Format: Article
• Language: English
• Published: 2022
• Subjects: Engineering::Electrical and electronic engineering; Optical Constants; Optics
• Online Access: https://hdl.handle.net/10356/162471
• Institution: Nanyang Technological University

We present an efficient 976 nm laser generation from an ytterbium (Yb)-doped step-index multicore fiber (MCF) with six cores placed in a ring shape. Each of the six cores has a large-mode-area (LMA) and a low numerical aperture (NA), which makes the MCF equipped with the features of a large core-to-...