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Acoustic-induced switching of the reflection wavelength in a fiber Bragg grating

机译:光纤布拉格光栅中反射波长的声诱导转换

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摘要

Coupling between copropagating core and cladding modes was implemented by acoustic generation of lateral vibration of an etched fiber. When these coupling processes were combined with counterpropagating coupling of a core mode and a cladding mode and the Bragg reflection of a fiber grating, switching of reflection wavelength between the Bragg wavelength and cladding-mode coupling wavelengths was achieved. We report the implementation of such acoustically induced switching behaviors and explain their operation principles. The implemented results can be used for wavelength-division multiplexed add-drop filtering.
机译:通过蚀刻纤维横向振动的声波产生来实现共传播纤芯和包层模式之间的耦合。当将这些耦合过程与纤芯模式和包层模式的反向传播耦合以及光纤光栅的布拉格反射结合在一起时,就可以在布拉格波长和包层模式耦合波长之间切换反射波长。我们报告了这种声感应开关行为的实现并解释了它们的工作原理。所实现的结果可用于波分复用分插滤波。

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