Weiyi Sun, Jiapeng Huang, Liming Chen, Zhiyuan Huang, Wenbin He, Xin Jiang, Meng Pang, Yuxin Leng. Design of a 10 W Level Dispersion-Managed High-Power Ultrafast Mid-Infrared Fiber Laser System[J]. Chinese Journal of Lasers, 2022, 49(1): 0101012
- Chinese Journal of Lasers
- Vol. 49, Issue 1, 0101012 (2022)
Fig. 1. Design of high-power ultrafast fiber laser system at 2.8 μm using dispersion-management and CPA techniques
Fig. 2. Wave shape transformation of the pulse in time domain and frequency domain in seed oscillator. (a) Time and (b) frequency domain wave shapes of input Gaussian pulse; (c) time (top) and frequency (below) transformation; (d)time and (e) frequency domain wave shapes of output pulse
Fig. 3. After forming a stable pulse in seed oscillator cavity, transmission process of a single round pulse in time and frequency domain and pulse widths. (a) Transformation process of pulse shape and spectral shape；(b)the largest pulse width; (c) the smallest pulse width
Fig. 4. Output pulse from the pre-amplifier. (a) Pulse shape；(b) pulse spectrum；(c) transformation process in time and frequency domain
Fig. 5. Output pulse in the main amplifier without compressor when positive chirp provided by pulse stretcher is balanced by negative chirp provided by gain fiber. (a) Pulse shape；(b) pulse spectrum；(c) transformation process in time and frequency domain
Fig. 6. Change of fiber output pulse width and the proportion of central pulse energy with normal dispersion provided by stretcher
Fig. 7. Output pulse in the main amplifier with two different groups dispersion values
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Table 1. Parameters in the simulation of seed oscillator
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Table 2. Parameters in the simulation of per-amplifier
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Table 3. Two different groups of parameters of main amplifier chosen for the simulation
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