What are the challenges in designing and fabricating tapered fiber sensors?
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Designing and fabricating tapered fiber sensors present several challenges. One challenge is determining the optimal parameters for performance evaluation, including taper length, sensitivity, wavelength scale, and waist diameter . Another challenge is achieving high sensitivity and stability in detecting changes in solution concentrations. Tapered fiber sensors have been used to monitor citric acid levels in deionized water, with a sensitivity of 0.0169 nm/ppm and a linearity of 93% . Additionally, the fabrication process of tapering down multimode-interference-based fiber structures requires careful control to obtain a high signal transmittance and achieve the desired waist diameter . The sensitivity of the sensor can be influenced by the tapered waist diameter, with smaller diameters resulting in increased sensitivity . Finally, the mechanism responsible for the high sensitivities of S-tapered fiber probe structures, such as the maximum refractive index sensitivity of 1441 nm/RI unit, needs to be thoroughly analyzed .
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3 Citations | The paper does not mention any challenges in designing and fabricating tapered fiber sensors. |
72 Citations | The challenges in designing and fabricating tapered fiber sensors include difficulty in knowing the exact tapered fiber parameters and the high sensitivity of the spectral results with such dimensions. |
| The paper does not mention any challenges in designing and fabricating tapered fiber sensors. |
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