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应用科学学报 ›› 1986, Vol. 4 ›› Issue (1): 43-48.

• 论文 • 上一篇    下一篇

单模光纤长波长(1.3μm)色散测量

姚慧海, 陈骏夫   

  1. 上海科学技术大学
  • 收稿日期:1984-11-30 修回日期:1985-03-05 出版日期:1986-03-31 发布日期:1986-03-31

SINGLE-MODE FIBER DISPERSION MEASUREMENTS AT 1.3μm WAVELENGTH REGION

YAO HUIHAI, CHEN JUNFU   

  1. Shanghai University of Science & Technology
  • Received:1984-11-30 Revised:1985-03-05 Online:1986-03-31 Published:1986-03-31

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摘要： 本文介绍了全部采用国产元器件建立的时域法脉冲展宽测量系统的原理、设计、结构及测试结果.该系统可用来测定单模光纤长波长(1.3μm)色散.测试结果及分析表明,本系统可满意地用于多模光纤色散和光电探测器响应速度测量;对单模光纤色散测量,当待测光纤长度达10km以上时,相对测量误差小于3%.在待测光纤较短时,相对误差增大,但此时仍可满意地鉴别单模光纤在1.3μm波长下是否符合6ps/km·nm这一技术指标.

Abstract: The principle of operation, design, construction and measured results of time-domain measurement system using pulse spreading are presented in this paper. All of the elements and devices used in this system are made in China. The system can be used to measure single-mode fiber dispersion at longer wavelength (1.3μm). It is shown by the measured results and analyses that the system is applicable to multi-mode fiber dispersion measurement and photodeteotor response time measurement with high accuracy. For single-mode[fiber dispersion measurement, the relative error can be better than 3% if the test fiber is longer than 10km. When the test fiber is shorter, the relative error becomes worse. However, it is still applicable to identify whether a single-mode fiber meets the dispersion specification of 6ps, kru-nm at 1.3μm wavelength region.