title: Soliton rains in a normal dispersion fiber laser with dual-filter.
abstract: We demonstrate an experimental observation of soliton rains in an all normal dispersion Yb-fiber laser. The cavity consists of a narrow bandwidth filter and a birefringent plate (BP) filter. Soliton rain is obtained in the weak mode-locking regime, while multisolitons behaving as soliton bunches and harmonic mode-locking under strong mode-locking are also observed. Distinctive multisoliton interactions are observed via changing the pump power and adjustment of the waveplates as well as the BP. To the best of our knowledge, this is the first demonstration of soliton rains in normal dispersion fiber lasers.
authors.affiliation: State Key Laboratory of Precious Measurement Technology and Instruments, Department of Precision Instruments and Mechanology, Tsinghua University, Beijing 100084, China.
authors.forename: Chengying
authors.initials: C
authors.lastname: Bao
authors.forename: Xiaosheng
authors.initials: X
authors.lastname: Xiao
authors.forename: Changxi
authors.initials: C
authors.lastname: Yang