NONDISCONNECTION DETECTING DEVICE FOR OPTICAL FIBER

摘要

PURPOSE:To detect a leaking light signal efficiently even from an optical fiber to be tested which is installed at a narrow place by arranging a photodetector at the straight part of an optical fiber near a curving means which curves the optical fiber to be tested. CONSTITUTION:A clip 19 as the curving means is fitted at a proper position of the optical fiber 11 to be tested, and the optical fiber 11 is curved. The photodetector 15 is coupled with the optical fiber 11 near the clip 19 to detect the leaking light signal. A mirror 20 is provided to the photodetector 15 and the light signal leaking at the opposite side is converged to improve the coupling rate.