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1、前言随着光纤维损耗降低的实现,以及光源、光接收器件和光路元件性能的提高,从而,有可能构成光通信系统,并正开展实用研究工作。光频领域的研究需要各种各样的技术,但其中测试方法和测试仪器的研制也是一项重要的课题。特别是光通信研究走向实用化的今天,掌握光纤传输特性是一项重要的课题,因此,研究基本测试仪器(例如:功率计,可变衰减器等)的同时,还有必要研制由分立的检测器和振荡器,所构成的测定光纤传输线的性能用的测试装置。
1. Introduction With the realization of the reduction of the optical fiber loss and the improvement of the performance of the light source, the light-receiving device and the optical path element, it is possible to construct an optical communication system and to carry out practical research work. Research in the field of optical frequency requires a wide range of technologies, but the development of test methods and test equipment is also an important issue. In particular, the research of optical communication is becoming more and more practical. To master the characteristics of optical fiber transmission is an important issue. Therefore, it is necessary to develop the basic test equipment (such as power meter and variable attenuator) A detector and an oscillator, and a test device for measuring the performance of an optical fiber transmission line.