一种双包层的高功率光纤改进设计方法

An improved design method of double-clad high power fiber

光纤因其光束质量好、散热面积大、转换效率高等显著优势而成为激光技术发展的主要方向,针对当前在光纤设计存在稳定性和实用性差、光纤信道利用率低的问题,提出一种双包层光纤设计方法。给出了光纤设计原理及构成,利用泵浦技术提高光的吸收效率,完成光纤的改进设计;设定双包层光纤的不同参数组合及差异化的目标函数,得到最大光信号输出功率,利用全局寻优对光纤技术参数及参数组合进行综合优化,完成方法设计。实验证明:设计的光纤在激光器系统的应用中,稳定性和实用性高,并可以有效提高集成网络信道利用率。

Optical fiber has become the main direction of laser technology development due to its remarkable advantages of good beam quality,large heat dissipation area and high conversion efficiency.Aiming at the problems of poor stability and practicability in fiber design and low utilization of fiber channel,a design method of double-clad fiber is proposed.The design principle and composition of optical fiber are given.The pump technology is used to improve the absorption efficiency of light and complete the improved design of optical fiber;Set different parameter combinations and differential objective functions of the double-clad fiber to obtain the maximum optical signal output power.Use global optimization to comprehensively optimize the fiber technical parameters and parameter combinations,and complete the method design.The experiment shows that the fiber designed in this paper has high stability and practicability in the application of laser system,and can effectively improve the utilization rate of integrated network channel.