Franzen D L, Day G W, Danielson B L, Chamberlain G E, Kim E M
Appl Opt. 1981 Jul 15;20(14):2412-9. doi: 10.1364/AO.20.002412.
An interlaboratory measurement comparison was conducted by the National Bureau of Standards in cooperation with the Electronic Industries Association. Participants included NBS and nine optical fiber and cable manufacturers. Four graded-index fibers having lengths of 2, 2, 2, and 0.9 km were used. Measurements of attenuation at 850 nm, using both beam optics and mode filter approaches to achieve a restricted launch, gave one standard deviation spreads of 0.24, 0.12, 0.12, and 0.43 dB/km for an overall average of 0.23 dB/km. Best measurement agreement was obtained for a fiber having little differential mode attenuation. Measurements of -3-dB bandwidth from time domain acquired data at 90 nm gave an average one standard deviation spread of 12% with poorer agreement on the higher frequency portion of the frequency response.
国家标准局与电子工业协会合作进行了一项实验室间测量比较。参与者包括国家标准局以及九家光纤和光缆制造商。使用了四根长度分别为2千米、2千米、2千米和0.9千米的渐变折射率光纤。在850纳米波长下，采用光束光学和模式滤波器方法实现受限发射来测量衰减，得到的标准偏差分别为0.24、0.12、0.12和0.43分贝/千米，总体平均值为0.23分贝/千米。对于具有较小差分模式衰减的光纤，测量一致性最佳。从时域采集的数据中测量90纳米处的-3分贝带宽，得到的平均标准偏差扩展为12%，在频率响应的高频部分一致性较差。
