Guojia Huang, Shizhang Ma, Lian Wang, Shiping Li, Wenlin Feng. Photonic Crystal Fiber Mach-Zehnder Interferometer Based on Refractive Index Sensitivity of Cladding Corrosion Optimization[J]. Laser & Optoelectronics Progress, 2019, 56(17): 170629
- Laser & Optoelectronics Progress
- Vol. 56, Issue 17, 170629 (2019)
Fig. 1. Diagram of corrosion device
Fig. 2. Sensitivity of 2 cm PCF to external refractive index. (a) Image of wavelength shift; (b) fitting image of wavelength shift
Fig. 3. Relationship between sensitivity and length of PCF
Fig. 4. Sensitivity of interferometer with 3 cm PCF to external refractive index after corrosion for 20 min. (a) Image of wavelength shift; (b) fitting image of wavelength shift
Fig. 5. Refractive index sensitivity of interferometer with 3 cm PCF in NaCl solution before corrosion
Fig. 6. Patterns of PCF. (a) Microscope image of fiber after corrosion for 60 min; (b) end face before corrosion
Fig. 7. Variation of wavelength offset with temperature
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Table 1. Refractive index sensitivity of PCF with different lengths
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Table 2. Sensitivity of interferometer with 3 cm PCF to external refractive index before and after corrosion
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Table 3. Spectral data of 3 cm PCF with different corrosion time
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