从纤维光学电话通讯样机在外场进行六个月的成功试验看来,光波通讯已接近于实际使用。据在试验地点佐治亚州亚特兰大的贝耳实验室和西部电气公司发言人讲,“该实验表明在制备为都市使用的光学通讯系统上已迈出了重要一步。在该实验系统中,每个光导(包括12个光导纤维)的一端连接在一个含有双异质结镓-铝-砷激光二极管的发射机组件上。 From a successful six-month test of fiber optic telephony in the outfield, lightwave communications are close to actual use. According to a spokesman for Bell Labs and Western Electric Company in Atlanta, Georgia, where the test was conducted, ”the experiment shows that an important step has been taken in the preparation of an optical communication system for the city. In this experimental system, each One end of the light guide (including 12 optical fibers) was attached to a transmitter assembly containing a double heterojunction gallium-aluminum-arsenide laser diode.