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Dual-State Multiwavelength Fiber Laser: Nanosecond Pulses and Tunable Continuous Waves

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4 Author(s)
Xuesong Liu ; State Key Laboratory of Advanced Optical Communication Systems and Networks, the Department of Physics, Key Laboratory for Laser Plasmas, the Ministry of Education, Shanghai Jiao Tong University, Shanghai, China ; Li Zhan ; Jinmei Liu ; Xuehao Shen

We experimentally research the spectral and temporal properties of a multiwavelength erbium-doped fiber laser based on a nonlinear amplifying loop mirror (NALM). The laser can work in two multiwavelength lasing states by switching the transmission function of the NALM. One state corresponds to the passively mode-locked operation, presenting 78 stable lasing wavelengths and nanosecond-square pulses. The other state is the continuous-wave operation with four tunable lasing wavelengths with narrow linewidth and high signal-to-noise ratio.

Published in:

IEEE Photonics Technology Letters  (Volume:25 ,  Issue: 17 )