线性调频半导体激光定位的研究

Research on Positioning Using Linearly Frequency-modulatedDiode Laser

本文提出了一种新的半导体激光定位技术，它利用半导体激光器的线性调频特性来实现干涉零点的动态定位。突破了传统白光定位的局限，简化了干涉仪设计，并实现了大范围内的零点捕捉，是一种实用的干涉定位技术。

A new diode laser positioning technique is proposed in this paper.The zero optical-path-difference(OPD)point of a interferometer can be dynamically searched with diode laser'sproperty of linear frequency modulation.Compared to traditional white light positioning,thediode laser positioning interferometer is simplified,and the searching range of the zero OPDpoint has been increased greatly.