输出激光模式既是单纵模又是单横模的激光器。单纵模是指谐振腔内只有单一纵模(单一频率)进行振荡，单横模又称基横模，是指光强在光横截面上的分布为高斯分布。
它们可以用来得到较大输出能量的单纵模激光器和激光器的新的调制方法。
The results obtained in our work can be used in construction of a single longitudinal mode laser with enhance output and to suggest a new method of modulation for lasers.
介绍了作者在测量单纵模激光器线宽参数的过程中，研制的马赫-曾德尔光纤干涉仪，并给出了实验结果。
This paper introduces the development of fiber-optic Mach-Zehnder interferometer during measuring linewidth parameter of single-frequency lasers, and the experiment result has been given.
在一定的条件下，该方法是可以对单纵模光纤激光器的输出线宽进行测量的。
Under certain conditions, this method can measure the output linewidth of single longitudinal mode fiber laser.
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