Brown R G, Derick B N
Plastics Department, E. I. du Pontde Nemours & Company, Experimental Station, Wilmington,Delaware 19898, USA.
Appl Opt. 1968 Aug 1;7(8):1565-9. doi: 10.1364/AO.7.001565.
Transmission loss in plastic optical fibers was investigated for axial, small numerical aperture input. The loss coefficient alpha was determined as a function of wavelength lambda by varying sample length and using filters. More extensive information on alpha(lambda) was obtained by use of a monochromator with transmission at a particular lambda standardized by independent measurement. Measurement in white light of scattered intensity as a function of position along a fiber yielded alpha and an estimate of scattering power. Analyses of the scattering data and the variation of alpha with lambda suggest that scattering is the principal loss mechanism.
针对轴向、小数值孔径输入的情况，研究了塑料光纤中的传输损耗。通过改变样品长度并使用滤波器，确定了损耗系数α作为波长λ的函数。通过使用单色仪，在特定波长λ处的传输由独立测量标准化，从而获得了关于α(λ)的更广泛信息。在白光下测量沿光纤的散射强度随位置的变化，得到了α以及散射功率的估计值。对散射数据和α随λ的变化进行分析表明，散射是主要的损耗机制。
