Xu Zhen, Jia Dongfang, Li Zihao, Sun Xu, Ge Chunfeng, Wang Zhaoying, Yang Tianxin, Cao Xiaodong. Generation of Square Pulses at Both Anomalous and Normal Dispersion Regimes in Passively Mode-Locked Erbium-Doped Fiber Laser[J]. Chinese Journal of Lasers, 2020, 47(12): 1201006
- Chinese Journal of Lasers
- Vol. 47, Issue 12, 1201006 (2020)
Fig. 1. Experimental setup of a passively mode-locked Er-doped fiber laser based on NOLM
Fig. 2. Dynamic evolution of square pulses at anomalous dispersion regime
Fig. 3. Corresponding spectra of square pulses under different pump powers
Fig. 4. Measured temporal duration and single pulse energy of square pulse at anomalous dispersion regime change with pump power
Fig. 5. Square pulse at anomalous dispersion regime under the pump power of 481.2mW. (a) Single pulse profile; (b) pulse train; (c) RF spectrum; (d) optical spectrum
Fig. 6. Dynamic evolution of square pulses at normal dispersion regime
Fig. 7. Measured temporal duration and single pulse energy of square pulse at normal dispersion regime change with pump power
Fig. 8. Square pulse at normal dispersion regime under the pump power of 481.2mW. (a) Single pulse profile; (b) pulse train; (c) RF spectrum; (d) optical spectrum
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Table 1. Length and dispersion of optical fibers utilized in the experiment
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