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将再生锁模光纤激光器(RMLFL)输出的约5.8 ps脉宽的高质量无啁啾双曲正割脉冲,通过掺铒光纤放大器(EDFA)放大后注入4.28 km长的色散平坦光纤(DFF)中,利用二阶孤子压缩效应成功地将脉冲压缩到1.74 ps,压缩比为3.3,与理论计算结果完全一致。与基于色散渐减光纤(DDF)的绝热孤子压缩(ASC)方案相比,该方案在同样的孤子阶数下大大降低了入射功率,而且色散平坦光纤的非色散渐减特性决定了它对于不同波长、不同脉宽的输入都可以通过调整输入脉冲功率和选取合适的光纤长度来配合满足压缩条件。虽然压缩因子不大,但基本能满足需求。
High quality chirped hyperbolic secant pulses of about 5.8 ps output from a regenerative mode-locked fiber laser (RMLFL) were amplified by an erbium-doped fiber amplifier (EDFA) and injected into a 4.28 km dispersion-flattened fiber (DFF) , The second-order soliton compression effect was successfully used to compress the pulse to 1.74 ps with a compression ratio of 3.3, which is completely consistent with the theoretical calculation. Compared with the adiabatic soliton compression (ASC) scheme based on DDF, this scheme greatly reduces the incident power at the same soliton order, and the non-chromatic dispersion decreasing characteristic of the dispersion-flattened fiber determines that for different Wavelength, different pulse width of the input can be adjusted by adjusting the input pulse power and select the appropriate fiber length to meet the compression conditions. Although the compression factor is not, but basically to meet the demand.