Mode instability in a Yb-doped stretched core fiber

• Main Authors: Xia, Nan, Yoo, Seongwoo
• Other Authors: Robin, Craig A.
• Format: Article
• Language: English
• Published: 2019
• Subjects: Engineering::Electrical and electronic engineering; Fiber Optics Amplifiers and Oscillators; Thermal Effects
• Online Access: https://hdl.handle.net/10356/106341; http://hdl.handle.net/10220/49636; http://dx.doi.org/10.1117/12.2251635
• Institution: Nanyang Technological University

In this work we present the theoretical study of transverse mode instability (TMI) in ytterbium (Yb)-doped rectangular core fibers with different core aspect ratios using the fast Fourier transform (FFT) beam propagation method (BPM). As expected, the rectangular core fiber with larger aspect ratio...