The mode discrimination and loss characteristics of unstable optical resonators with higher Fresnel number are analysed using theories of geometric-optics and interferometer.
采用几何光学和干涉仪理论，分析了较大菲涅尔数情况下，非稳腔内不同波型的区分方法以及它们彼此间的损耗率差异；
The measurement stability and repetitiveness of the laser interferometer is improved by means of convenient mode inhibiting technique.
利用共模抑制技术，提高了干涉系统的测量稳定性和重复性。
An absolute distance heterodyne interferometer using a dual longitudinal mode he ne laser is proposed.
提出了一种采用双纵模稳频激光器的新型绝对距离测量外差干涉仪。
A comb-filter based on Mach-Zehnder interferometer (MZI) is experimentally fabricated by splicing a section of single mode twin-core fiber (TCF) between two single mode fibers (SMFs).
通过将一根单模双芯光纤熔接在两根单模光纤之间，实验制得全光纤马赫曾德尔干涉仪型梳状滤波器。
This paper describes a measuring system basing on an optical heterodyne interferometer, which utilizes a multi-mode laser diode and coupled optical fibers to adjust the coherent length of the system.
研究了一种采用多模半导体激光与耦合光纤、采取声光调制及调节相干长度的外差干涉系统。
This paper describes a measuring system basing on an optical heterodyne interferometer, which utilizes a multi-mode laser diode and coupled optical fibers to adjust the coherent length of the system.
研究了一种采用多模半导体激光与耦合光纤、采取声光调制及调节相干长度的外差干涉系统。
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