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Contact printing of Bragg gratings in optical fibers: Rigorous diffraction analysis

机译：光纤中布拉格光栅的接触印刷：严格的衍射分析

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摘要

The fabrication of Bragg gratings inside the core of single-mode optical fibers has been greatly simplified by the application of contact printing [Appl. Phys. Lett. 62, 1035 (1993)]. According to this technique, the fiber is placed in proximity to an appropriate phase grating, which is illuminated with nominally monochromatic UV light. The transmitted light is redistributed into an ideally sinusoidal variation of optical intensity (more properly, irradiance), which is imprinted into the core as a result of photoinduced refractive index changes. In accordance with normal practice in this field, intensity is used instead of optical intensity throughout the text. The main advantage of such a writing method, apart from its simplicity, is that the illumination source need not be highly coherent. Rigorous analysis of this method is given with a new phase grating design. (C) 1997 Optical Society of America
机译：通过接触印刷的应用，单模光纤纤芯内部的布拉格光栅的制造已大大简化。物理来吧62，1035（1993）]。根据该技术，将光纤放置在适当的相位光栅附近，该相位光栅由标称单色的UV光照射。透射的光被重新分配为理想的光强度正弦曲线变化（更恰当地说是辐照度），由于光诱导的折射率变化而将其压印到纤芯中。根据该领域的常规做法，在整个文本中都使用强度来代替光学强度。除了简单之外，这种写入方法的主要优点是照明源不需要高度连贯。通过新的相位光栅设计对该方法进行了严格的分析。 （C）1997年美国眼镜学会

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