激光器消光比测试系统的设计与实现

With the improvement of optical fiber communication network transmission technology and the wide application of optical fiber transmission equipment, the principal component laser optical fiber transmission equipment of the core device of optical module of a light signal extinction ratio test become more and more important . In this paper, the design of the a laser extinction ratio testing system without the aid of oscilloscope, sent out of the laser light signal extinction ratio measured, compared with the traditional test methods, the test method is more convenient, thus substantially lower than the cost of testing in the production process of extinction.