Single-Longitudinal-Mode Thulium-Doped Fiber Laser With Sub-kHz Linewidth Based on a Triple-Coupler Double-Ring Cavity.
Ting LiFengping YanXuemei DuWei WangDandan YangXiangdong WangChenhao YuKazuo KumamotoHong ZhouTing FengPublished in: IEEE Access (2022)