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Uniformly thinned optical fibers produced via HF etching with spectral and microscopic verification

机译:通过HF蚀刻产生的均匀细化的光纤,并进行光谱和显微镜验证

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摘要

A method for producing uniformly thinned (etched) optical fibers is described, which can also be employed to etch optical fibers containing a Bragg grating (FBG) uniformly for evanescent-field-based sensing and other applications. Through a simple modification of this method, the fabrication of phase-shifted FBGs based on uneven etching is also shown. The critical role of how a fiber is secured is shown, and the success of the method is illustrated, by differential interference contrast microscopy images of uniformly etched FBGs. An etched FBG sensor for the monitoring of the refractive index of different glycerin solutions is demonstrated.
机译:描述了一种用于制造均匀变细的(蚀刻的)光纤的方法,该方法还可以用于均匀地蚀刻包含布拉格光栅(FBG)的光纤,以用于基于衰减场的感测和其他应用。通过对该方法的简单修改,还显示了基于不均匀蚀刻的相移FBG的制造。通过均匀蚀刻的FBG的差分干涉对比显微镜图像,显示了如何固定光纤的关键作用,并说明了该方法的成功。展示了用于监控不同甘油溶液折射率的蚀刻FBG传感器。

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