中国物理B ›› 2015, Vol. 24 ›› Issue (8): 84207-084207.doi: 10.1088/1674-1056/24/8/084207
• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇 下一篇
宋锐, 雷成敏, 陈胜平, 王泽锋, 侯静
Song Rui (宋锐), Lei Cheng-Min (雷成敏), Chen Sheng-Ping (陈胜平), Wang Ze-Feng (王泽锋), Hou Jing (侯静)
摘要: The effect of pulse width on near-infrared supercontinuum generation in nonlinear fiber amplifier is investigated theoretically and experimentally. The complex Ginzburg–Landau equation and adaptive split-step Fourier method are used to simulate the propagation of pulses with different pulse widths in the fiber amplifier, and the results show that a longer pulse is more profitable in near-infrared supercontinuum generation if the central wavelength of the input laser lies in the normal dispersion region of the gain fiber. A four-stage master oscillator power amplifier configuration is adopted and the output spectra under picosecond and nanosecond input pulses are compared with each other. The experimental results are in good accordance with the simulations which can provide some guidance for further optimization of the system.
中图分类号: (Fiber lasers)