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采用数值模拟的方法分析了光脉冲的初始频率啁啾对孤子效应压缩器产生的压缩脉冲的影响,发现光脉冲初始频率啁啾对压缩脉冲的品质因子有较大的影响。光脉冲的初始负啁啾越大,压缩脉冲的最大品质因子越小;初始正啾啁越大,压缩脉冲的最大品质因子越大。光纤的损耗对压缩脉冲的质量有较大影响,特别当孤子阶数较小时影响更大,所以光纤的损耗不能忽略。
The influence of the initial frequency chirp of optical pulse on the compression pulse generated by the soliton effect compressor is analyzed by numerical simulation. It is found that the chirp of the initial frequency of optical pulse has a great influence on the quality factor of the compression pulse. The larger the initial negative chirp of the optical pulse, the smaller the maximum quality factor of the compression pulse. The larger the initial chirp, the larger the maximum quality factor of the compression pulse. Optical fiber loss has a greater impact on the quality of the compression pulse, especially when the order of the soliton is more affected, so the loss of the fiber can not be ignored.