Troitski Y V
Appl Opt. 1995 Aug 1;34(22):4717-22. doi: 10.1364/AO.34.004717.
A two-mirror Fabry-Perot interferometer is described haivng a dependence of transmission T˜ (ω) on frequency that is very different from the dependence T˜ (l) on the distance l between the mirrors. This feature is due to resonant dielectric mirrors in which the reflection phase and amplitude depend sharply on ω. The function T˜ (ω) can have several extrema ∂T˜ /∂ω = 0. At these points the interferometer becomes insensitive to a frequency change, whereas the dependence on l remains. Interferometer parameters are defined and some examples are considered. The dispersion-free interferometer can be used for measuring very small mechanical displacements with a light source with poor frequency stability. The applications to gravitational wave detectors and sensitive seismometers can be suggested if the small distance between the mirrors is acceptable.
描述了一种双镜法布里-珀罗干涉仪，其透射率T˜(ω)对频率的依赖性与透射率T˜(l)对镜间距离l的依赖性有很大不同。此特性归因于谐振介质镜，其中反射相位和幅度对ω的依赖性很强。函数T˜(ω)可能有几个极值点∂T˜/∂ω = 0。在这些点处，干涉仪对频率变化变得不敏感，而对l的依赖性仍然存在。定义了干涉仪参数并考虑了一些示例。无色散干涉仪可用于使用频率稳定性较差的光源测量非常小的机械位移。如果镜间小距离是可接受的，则可以考虑将其应用于引力波探测器和灵敏地震仪。
