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光纤激光器相干合成技术的研究对于获得高功率和良好光束质量的激光输出具有十分重大的意义,而激光束相干合成技术对光纤激光器的相干合成具有重要的启发作用.介绍了激光束相干合成技术的基本原理和研究进展,按照不同的合成机理对各种相干合成方案进行了分类,详细阐述了各种方案的合成机理和技术难点,并对各种方案作了简要的对比和优劣性评价,指出了三种比较有前途的激光束相干合成技术方案.

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