OPTICAL TOMOGRAPHY SYSTEM AND OPTICAL STABILIZATION METHOD THEREOF

摘要

PURPOSE: An optical tomography apparatus and an optical system stabilization method thereof are provided to get a stable measurement signal regardless of vibration and external influence by compensating the state change of an optical system in real-time. CONSTITUTION: A X-axis and a Y-axis motors(25,26) transfer a collimating lens or a reference mirror to the X-axis and the Y-axis direction in order to compensate a catoptrics optical system of a reference arm. A signal processing unit(21) processes a detected signal by a photodetector. A controller(22) controls the location of the X-axis and Y-axis of the reference mirror or the collimating lens to make an output DC power to be maximized. A X-axis and Y-axis motor drivers(23,24) vary the location of the X-axis and Y-axis of the reference mirror or the collimating lens by driving the X-axis and Y axis motor according to the control of the controller.