METHOD FOR DETERMINING PROPERTIES OF OPTICAL DEVICE AND INSPECTION DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a method and device for determining elements or the like of the Jones matrix of an optical device without requiring an interferometer. SOLUTION: This method comprises a process for generating an incoming light beam; a process for dividing the incoming light beam to a first light beam and a second light beam; a process for making the first light beam having two mutually delayed parts into a given initial polarized light and connecting it to the optical device to be tested; a process for advancing the second light beam to a route different from the first light beam; a process for superposing the first light beam to the second light beam and performing an interference between the first and second light beams in the superimposed light beam; a process for separating the superimposed light beam to depending third light beam and fourth light beam; a process for detecting the powers of the third and fourth light beams as the function of frequency when synchronizing the frequency of the incoming light beam over a given frequency range; and a process for deriving the properties of the optical device to be tested from the frequency dependency of the detected powers.