Morrison E, Meers B J, Robertson D I, Ward H
Appl Opt. 1994 Aug 1;33(22):5041-9. doi: 10.1364/AO.33.005041.
We present a description of a system for automatic alignment of optical interferometers. The technique relies on using differential phase modulation to permit the detection of the phase difference between two fundamental-mode Gaussian beams at the output of an interferometer. Measurements of the spatially varying phase difference between the two beams by use of one or more multielement photodiodes permits information to be derived about the mismatch in overlap between the phase fronts at the output of the interferometer.
我们介绍了一种用于光学干涉仪自动对准的系统。该技术依赖于使用差分相位调制来检测干涉仪输出端两个基模高斯光束之间的相位差。通过使用一个或多个多元素光电二极管测量两束光之间空间变化的相位差,可以得出有关干涉仪输出端波前重叠失配的信息。