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光纤系统应用十分广泛,深入到国防和国民经济的各个领域。据报导,世界光纤应用市场1981年为二亿二千万美元,1982年为四亿四千万美元,1984年为七亿六千一百万美元,预计1985年的总销售额为十亿五千七百万美元,到1989年将增加到三十亿美元,到2000年全世界光纤系统的产值有可能达到二百亿美元。1982年光纤应用领域及产值比例分别为:电信:43％,民用:20％,军用:13％,宽带:13％,计算机/工业过程控制:10％,其它1％;其中电信敷设的光纤总长度约170000km。1984年日本用了270000km芯、美国用了330000km芯光纤。一、经济发达国家对光纤研究开发的态度北美、西欧、日本等一些经济发达国家的政府都十分重视和大力支持光纤的研究和开发工作。美国政府积极支持高度专门化的光
Optical fiber systems are widely used in various fields of national defense and national economy. It is reported that the world market of optical fiber applications was 220 million U.S. Dollars in 1981, 440 million U.S. Dollars in 1982 and 761 million U.S. Dollars in 1984. It is estimated that the total sales in 1985 will be 1.5 billion U.S. dollars. Seventeen million U.S. dollars will increase to three billion U.S. dollars in 1989 and the output value of fiber optic systems in the world may reach twenty billion U.S. dollars by the year 2000. The proportion of optical fiber applications and output value in 1982 were: Telecom: 43%, Civil: 20%, Military: 13%, Broadband: 13%, Computer / Industrial Process Control: 10%, Others 1% About 170000km in length. In 1984 Japan used 270000km core, the United States used 330,000km core fiber. I. The Attitude of Developed Countries to Optical Fiber Research and Development The governments of some economically developed countries in North America, Western Europe and Japan all attach great importance to and strongly support the research and development of optical fibers. The U.S. government actively supports highly specialized light