| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an optical fiber discrimination method which is capable of accurately discriminating a type of an optical fiber even in the case that it is difficult to recognize brightness waveform features of the optical fiber, such as an optical fiber having a complicated refractive index distribution or an elliptic core optical fiber.SOLUTION: When end surfaces 1a and 3a of a pair of optical fibers 1 and 3 are fusion-spliced together, a type of the optical fibers is discriminated from picked-up images of the end surfaces of the optical fibers. Brightness patterns of the optical fiber end surfaces obtained by picking up images of the end surfaces of the optical fibers from the front by imaging means 25 and 27 disposed so as to face the end surface of the optical fibers are collated with basic brightness patterns preliminarily stored per type of optical fibers, and a basic brightness pattern matching the brightness patterns is obtained to discriminate the type of the optical fibers.</p> |
