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基于自组织相干合成原理,利用迈克耳逊腔开展了光纤激光阵列相干合成的原理实验研究,实现了掺Yb3+双包层光纤激光阵列的相位锁定。根据其原理,合理解释了相应的物理现象以及迈克尔逊腔相比于其他腔型的优势。重点理论模拟并实验验证了准直透镜设计、耦合输出镜反射率、两路泵浦功率平衡等关键因素对迈克尔逊腔相干激光输出功率的影响,为优化迈克尔逊腔、提高最终输出功率、抑制相干相消端的功率泄漏在一定程度上提供了理论依据。
Based on the theory of self-organized coherence synthesis, the principle experiment of fiber laser array coherent synthesis was carried out by using Michelson cavity, and the phase locking of Yb3 + double-clad fiber laser array was realized. According to its principle, the corresponding physical phenomena and the advantages of the Michelson cavity compared to other cavity types are reasonably explained. The key theory is to simulate and experimentally verify the influence of collimation lens design, coupling output mirror reflectivity, two-way pump power balance and other key factors on the output power of Michelson cavity coherent laser. In order to optimize the Michelson cavity, increase the final output power, Coherent elimination of power leakage to some extent provides a theoretical basis.