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。
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.
就抽运参数、光纤环中单模光纤长度对输出激光脉冲特性的影响等进行了实验研究。
The effects of pump parameters and the length of single mode fiber in the loop on the self-pulse characteristics are investigated experimentally.
通过对前后两段铒光纤的长度优化，使得增益均衡滤波器的谱特性易于实现。
The length of two EDFs is optimized to make the transmission spectrum of gain equalization filter easy to be realized.
并分析了不同长度环芯光子晶体光纤的模式干涉仪的温度和应力特性。
The temperature and strain characteristics of the interferometers with different lengths of RPCF are investigated.
其次，从理论上分析了两点封装方案中FBG的自振特性，讨论了封装光纤的长度和预应力对光纤自振频率的影响。
Then, the natural vibration of the FBG based two-dot coating was described, and the effects of the length and prestress of the coated fiber on natural vibration frequency were discussed.
其次，从理论上分析了两点封装方案中FBG的自振特性，讨论了封装光纤的长度和预应力对光纤自振频率的影响。
Then, the natural vibration of the FBG based two-dot coating was described, and the effects of the length and prestress of the coated fiber on natural vibration frequency were discussed.
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