Patent ID: 6781698
Filing Date: 2004-08-24
Classification: G01M

Abstract:
A method for screening the quality of an optical component, the method comprising the steps of:a. simulating the performance of the optical component, the step of simulating comprising the steps of: i. measuring the optical phase &phgr; of the optical component, wherein the step of measuring comprises indirectly measuring the optical phase &phgr; of the optical component using a scanning laser having a scanning step size &Dgr;&ohgr; and a modulation frequency &ohgr;m such that &Dgr;&ohgr;/&ohgr;m=2 ii. measuring the light throughput R of the optical component; iii. constructing a transfer function H as a function of optical frequency &ohgr; where H(&ohgr;)=R(&ohgr;) exp[j&phgr;(&ohgr;)], and iv. simulating the performance using the measured value of the optical phase and the light throughput into the transfer function.