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以光纤作传输介质的光纤传输系统,波长在0.82～0.9μm的国外已经达到商用阶段波长在1.3μm和1.5μm的已开始试用,后者的中继距离可以和现有的无线电系统相比拟,是非常有前途的。我国光纤通信技术经几年研究、试制,在0.82～0.9μm波长范围亦已使系统从实验证实阶段前进到现场试用阶段。但光纤技术如何进入我国通信领域,亟待讨论的问题。我们经过初步分析,一方面从现阶段来看,认为应集中力量研制小容量(低速率)、短距离的数字系统,并将注意力放在这些系统在各种特殊场合的应用上,如飞机、船舰上的通信及数据母线等,办公室(楼内)内数据及电话系统,以及需要抗电磁干扰、防腐、小体积、小重量的数字通信系统,以使光纤技术在经济上可行,在价格上有竞争力;另一方面从长远观点来看,综合数字网必将是我国通信的远景目标,因此,国家应大力资助可以与无线电系统比美的1.3～1.5μm的长波长光纤通信系统的研制及发展工作。
Optical fiber transmission system for the optical fiber transmission system, the wavelength of 0.82 ~ 0.9μm in foreign countries have reached the commercial wavelength of 1.3μm and 1.5μm has begun trial, the latter relay distance comparable with the existing radio system, It is very promising. After several years of research and trial production of optical fiber communication technology in China, the system has been advanced from the experimental verification stage to the field trial stage in the wavelength range of 0.82 to 0.9 μm. However, how to enter the field of optical fiber technology in China, the urgent discussion of the issue. After a preliminary analysis, on the one hand we think that we should concentrate on the development of small-capacity (low-speed) and short-distance digital systems and pay attention to the application of these systems on special occasions such as aircraft , Communications and data buses on ships, data and telephone systems in offices (inside buildings), and digital communications systems that require resistance to electromagnetic interference, corrosion, small size, and small weight, to make optical fiber technology economically viable On the other hand, in the long term, the integrated digital network is bound to be the long-term goal of China’s telecommunications. Therefore, the state should vigorously support the long-wavelength optical fiber communication system of 1.3 to 1.5 μm that can be comparable to radio systems Research and development work.