Optical Fiber and Preform Profiling Technology
Optical Fiber and Preform Profiling Technology
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光纤和预制棒分析技术
DOI:
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发表时间:
1982
期刊:
影响因子:
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通讯作者:
W. Stewart
中科院分区:
文献类型:
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作者:
W. Stewart
A comprehensive review of state-of-tie-art optical fiber and preform index-profiling methods has been prepared. The advantages and disadvantages of the various approaches are discussed. Important parameters include measurement accuracy, resolution, simplicity, and the nondestructive features of some methods. Both optical and non-optical techniques have been treated. Resolution considerations probably favor the refracted near-field technique and this may be a decisive factor for the measurement of single-mode fibers. Simplicity of apparatus lies with near-field methods generally so that the bound near-field method is most often used for dimensioned measurements. Preform profiling is dominated by deflection function methods, usually accompanied by spatial filtering or focusing. Methods restricted to certain classes of fiber, such as the far-field approaches, are less attractive and, consequently, do not receive as much use.