Yuheng Pan, Junfeng Jiang, Weijia Lu, Huijia Yang, Kun Liu, Shuang Wang, Hui Wang, Tiegen Liu. Spectrum-profile-identification-based wavelength division multiplexing method for a fiber Bragg grating sensor[J]. Chinese Optics Letters, 2017, 15(7): 070605
- Chinese Optics Letters
- Vol. 15, Issue 7, 070605 (2017)
Fig. 1. Schematic diagram of the system.
Fig. 2. Experimental spectra of the sensors at 20°C: (a) spectrum of the FBG1, (b) spectrum of the FBG2, (c) spectrum of TFBG, and (d) spectrum of cascaded FBGs and TFBG.
Fig. 3. (Color online) Spectra of the cascaded FBG2 and TFBG at different temperatures.
Fig. 4. (Color online) Cross-correlation curve of (a) FBG2 and (b) TFBG.
Fig. 5. Peak of the cross-correlation curve and temperature relationship of (a) FBG2 and (b) TFBG.
Fig. 6. (Color online) Spectra of the cascaded FBGs and TFBG at different temperatures.
Fig. 7. (Color online) Cross-correlation curve of (a) FBG1 and (b) FBG2.
Fig. 8. Peak of the cross-correlation curve and temperature relationship of (a) FBG1 and (b) FBG2.
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Table 1. Measured Errors of this Method
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