【摘 要】
：
一、引言传统的光学通讯和信号传输系统早已得到应用,但直到激光出现之前,用光学纤维(简称光纤)作为传输工具所产生的各种衰减还无法补偿。早期光纤的性能很差,然而自1966年
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一、引言传统的光学通讯和信号传输系统早已得到应用,但直到激光出现之前,用光学纤维(简称光纤)作为传输工具所产生的各种衰减还无法补偿。早期光纤的性能很差,然而自1966年至1976年的十年中,光纤的传输损耗已从1000dB/km下降到1dB/km。由于加工上的进步和光束制导方面光传输理论的研究,已导致光纤广泛地应用于包括临床医学
I. INTRODUCTION Traditional optical communication and signal transmission systems have been used for a long time. However, until the laser appears, various attenuation caused by using optical fiber (referred to as optical fiber) as a transmission tool can not be compensated. Early fiber performance was poor; however, fiber transmission loss had dropped from 1000 dB / km to 1 dB / km over the decade from 1966 to 1976. Due to advances in processing and optical transmission theory in beam steering, research has led to the widespread use of optical fibers in a variety of fields, including clinical medicine
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