Hernandez G, Mills O A
Appl Opt. 1973 Jan 1;12(1):126-30. doi: 10.1364/AO.12.000126.
A method of stabilizing a Fabry-Perot interferometer with respect to a reference wavelength, while simultaneously stabilizing the parallelism of the flats, is described. The method consists of creating correcting signals proportional to the displacement of the fringe maxima of three auxiliary spectral sources with respect to a fixed reference point and feeding these signals back to the interferometer piezoelectric drive so that the correcting signals become time invariant, and the interferometer is stabilized. The stability of the finished instrument with respect to the reference wavelength and parallelism is near lambda/1000, at 546 nm, for a 6-h period; however, the actual parallelism of the etalon is limited by the surface defects of the flats. The method, as described, allows simultaneous stabilization and data taking, since the instrument is continuously updating itself.
描述了一种使法布里-珀罗干涉仪相对于参考波长稳定，同时稳定平面平行度的方法。该方法包括产生与三个辅助光谱源的条纹最大值相对于固定参考点的位移成比例的校正信号，并将这些信号反馈到干涉仪压电驱动器，以使校正信号随时间不变，从而使干涉仪稳定。对于546nm的波长，成品仪器在6小时内相对于参考波长和平行度的稳定性接近λ/1000；然而，标准具的实际平行度受平面表面缺陷的限制。如所述的方法允许同时进行稳定和数据采集，因为仪器在不断自我更新。
