Minimize quantum-defect heating in thulium-doped silica fiber amplifiers by tandem-pumping

by Ji, Junhua, Yoo, Seongwoo, Shum, Perry Ping, Nilsson, Johan
Published 2013

Recent advances in coupled laser cavity design

by Chiang, Hung-Sheng, Nilsson, Johan, Ji, Junhau, Sahu, Jayanta, Leger, James R.
Published 2013

Bendable large-mode-area fiber with a non-circular core

by Ji, Junhua, Lin, Huaiqin, Sidharthan, Raghuraman, Ho, Daryl, Zhou, Yanyan, Nilsson, Johan, Yoo, Seongwoo
Published 2020

Multimode-pumped Raman amplification of a higher order mode in a large mode area fiber

by Zhu, Sheng, Pidishety, Shankar, Feng, Yutong, Hong, Soonki, Demas, Jeff, Sidharthan, Raghuraman, Yoo, Seongwoo, Ramachandran, Siddharth, Srinivasan, Balaji, Nilsson, Johan
Published 2019