Pengfei Liu, Lan Jiang, Sumei Wang, Zhitao Cao, Peng Wang. Temperature-insensitive refractive index sensor based on an optical fiber extrinsic Fabry–Perot interferometer processed by a femtosecond laser[J]. Chinese Optics Letters, 2016, 14(2): 020602
- Chinese Optics Letters
- Vol. 14, Issue 2, 020602 (2016)
Fig. 1. Schematic diagram of the proposed EFPI.
Fig. 2. Microscope images of the (a) fiber end face A, (b) fiber end face B, and (c) whole assembly.
Fig. 3. Experiment setup of RI sensing.
Fig. 4. Spectrum of the EFPI in air.
Fig. 5. Spectra of the EFPI filled with a NaCl solution (5%–10%).
Fig. 6. Amplification of part of the spectra.
Fig. 7. Wavelength shifts versus RI for the EFPI.
Fig. 8. Spectrum of the sensor in water with a cavity length of 358.5 μm.
Fig. 9. Wavelength shifts for the sensor with a cavity length of 358.5 μm.
Fig. 10. 11 × 81 L f
Fig. 11. Cavity length L f
Fig. 12. Cavity length L f
Set citation alerts for the article
Please enter your email address
© Copyright 2018-2021 | Chinese Laser Press. All Rights Reserved 沪ICP备15018463号-20