title: Spike suppression in fiber amplifiers through nonlinear polarization rotation.
abstract: We report a pulse reshaping approach to suppress the harmful spike in fiber amplifiers. The approach is based on the nonlinear polarization rotation induced by the optical Kerr effect along the fiber. The feasibility and optimization of the pulse reshaping mechanism is analyzed theoretically and experimentally. An experiment is set up, and effective spike removal with low insertion loss of 0.5 dB is realized.
authors.affiliation: Center for Photonics and Electronics, State Key Laboratory of Tribology, Department of Precision Instruments and Mechanology, Tsinghua University, Beijing 100084, China.
authors.forename: Jie
authors.initials: J
authors.lastname: Zhou
authors.forename: Mali
authors.initials: M
authors.lastname: Gong
authors.forename: Ping
authors.initials: P
authors.lastname: Yan
authors.forename: Haitao
authors.initials: H
authors.lastname: Zhang
authors.forename: Dongsheng
authors.initials: D
authors.lastname: Wang