EVALUATION OF MATERIAL DISPERSION USING A NANOSECOND OPTICAL PULSE RADIATOR

被引：15
作者：
HORIGUCHI, M
OHMORI, Y
MIYA, T
机构：
[1] Nippon Telegraph and Telephone Public Corporation, Ibaraki Electrical Communication Laboratory, Tokai, Ibaraki-ken
来源：
APPLIED OPTICS | 1979年 / 18卷 / 13期
关键词：
D O I：
10.1364/AO.18.002223
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
To study the material dispersion effects on graded-index fibers, a method for measuring the material dispersion in optical glass fibers has been developed. Nanosecond pulses in the 0.5-1.7-μm region are generated by a nanosecond optical pulse radiator and grating monochromator. These pulses are injected into a GeO2-P2O5-doped silica graded-index fiber. Relative time delay changes between different wavelengths are used to determine material dispersion, core glass refractive index, material group index, and optimum profile parameter of the graded-index fiber. From the measured data, the optimum profile parameter on the GeO2-P2O5-doped silica graded-index fiber could be estimated to be 1.88 at 1.27 μm of the material dispersion free wavelength region and 1.82 at 1.55 μm of the lowest-loss wavelength region in silica-based optical fiber wave guides. © 1979 Optical Society of America.
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页码：2223 / 2228
页数：6
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