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. 2017 Apr 19;17(4):893. doi: 10.3390/s17040893

Figure 13.

Figure 13

(a) Schematic diagram of the Hi-Bi elliptical microfiber Sagnac interferometer-based RH sensor; (b) Recorded transmission spectrum of dips at different RH values. Reprinted from [87] under creative common license https://creativecommons.org/licenses/by-nc-nd/4.0/.