title: Multiwavelength erbium-doped fiber laser based on a nonlinear amplifying loop mirror assisted by un-pumped EDF.
abstract: A multiwavelength erbium-doped fiber (EDF) laser based on a nonlinear amplifying loop mirror (NALM) is proposed and experimentally demonstrated. The NALM provides intensity-dependent transmissivity to equalize different-wavelength powers and the transmission can be uniquely optimized by controlling the cavity loss associated with a section of un-pumped EDF, which also enhances the output signal-to-noise ratio (SNR). Through adjusting the polarization controllers (PCs), under only 70 mW pump power, up to 62-wavelength output with channel spacing of 0.45 nm has been achieved. Also, the lasing tunability and stability are verified.
authors.affiliation: Department of Physics, Key Laboratory for Laser Plasmas (Ministry of Education), State Key Laboratory of Advanced Optical Communication Systems and Networks, Shanghai Jiao Tong University, Shanghai 200030, China.
authors.forename: Xuesong
authors.initials: X
authors.lastname: Liu
authors.forename: Li
authors.initials: L
authors.lastname: Zhan
authors.forename: Shouyu
authors.initials: S
authors.lastname: Luo
authors.forename: Zhaochang
authors.initials: Z
authors.lastname: Gu
authors.forename: Jinmei
authors.initials: J
authors.lastname: Liu
authors.forename: Yuxing
authors.initials: Y
authors.lastname: Wang
authors.forename: Qishun
authors.initials: Q
authors.lastname: Shen
mesh_terms: D000669:Amplifiers, Electronic; D004867:Equipment Design; D019544:Equipment Failure Analysis; D005336:Fiber Optic Technology / Q000295:instrumentation*; D053844:Lasers, Solid-State; D007909:Lenses; D017711:Nonlinear Dynamics