His difference is intimately related to the big difference in the power output as indicated in Figure 9.7.
这种差别和图9.7所示的输出功率上的显著差别有密切联系。
Furthermore, we analysis the effect of difference inner-cladding structures on the absorption efficiency of pump light, and the fiber length has a significantly impact on output power.
分别介绍了单包层光纤和双包层光纤的结构，分析它们的传输特性，讨论了内包层形状对泵浦光吸收效率的影响以及光纤长度对输出功率的影响。
However, it also makes great problems such as power loss, low output efficiency, great difference between theoretical and practical in practical engineering applications.
但是在工程实际应用上往往会出现功率损耗大，输出效能低，理论计算和实际耗能相差太大等问题。
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