Evaluating method of loss of optical connector

Abstract

Abstract PURPOSE:To evaluate the loss of a connector by using a master plug fitted to an optical fiber which is different in mode volume, and making light made incident on the optical fiber on the side of a plug to be measured and detecting the light leaking from the bent part of the fiber. CONSTITUTION:The master plug 2c fitted to the optical fiber 8 having the same mode volume that an optical fiber 1 has and a master plug 2d fitted to the optical fiber having smaller mode volume than the optical fiber 1 are provided. Light from a light source 5 is made incident on the optical fibers 8 and 9, and the plugs 2c and 2a are coupled with each other to make the light incident on the optical fiber 1; and the fiber 1 is bent near the plug 2a to leak the light, and to detect light power P1. The plugs 2d and 2a are coupled with each other and the light is made incident on the fiber 1; and the light power P2 leaking from the bent part formed in the pretreatment of the fiber 1 is detected, thereby evaluating the loss characteristics of the plug 2a on the basis of P1 and P2. Thus, the light leaking from the bent part of the fiber is detected to evaluate the loss of the connector easily.

Inventors

• 👤 Giyu Kashima
• 👤 加島　宜雄

Bibliographic Details