DEVICE AND METHOD FOR ACTIVELY MATCHING OPTICAL ELEMENT

摘要

PROBLEM TO BE SOLVED: To provide an improved device and method for coupling optical transmission between different optical devices such as an optical element and an optical fiber. SOLUTION: This device for actively matching and coupling separate optical elements consisting of a light emitting element and a light receiving element is equipped with: a first matching means having a comparatively low optical resolution stage composed so as to perform rough matching of the light emitting element in search of approximated position of the highest strength position; and a second matching means having a comparatively high optical resolution stage composed so as to perform fine matching of the light emitting element in search of more accurate position of that highest strength position. Thus, rough matching can be performed using a multimode fiber. Also, fine matching can be performed using a single mode fiber capable of coupling the light emitting element. COPYRIGHT: (C)2004,JPO&NCIPI