OOptics Express15d agoSelf-Injection Locked Sub-Hertz Brillouin Laser Enabled by a Möbius-Type Ring ResonatorYaping Dai·Haibinb Wu·Pengyue Liu·shujin Deng·Jianji LiuRead at Optics ExpressTagsAdvanced Fiber Laser TechnologiesAtomic and Molecular Physics, and Optics