Ting Li, Fengping Yan, Xuemei Du, Wei Wang, Dandan Yang, Xiangdong Wang, Chenhao Yu, Kazuo Kumamoto, Hong Zhou, Ting Feng. Single-Longitudinal-Mode Thulium-Doped Fiber Laser With Sub-kHz Linewidth Based on a Triple-Coupler Double-Ring Cavity. IEEE Access, 10:123114-123122, 2022. [doi]
Abstract is missing.