Chinese Optics Letters, Volume. 18, Issue 2, 020601(2020)
Dual-channel microfluidic sensor based on side-hole fiber with two long-period fiber gratings
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Fig. 1. (a) Profile image of the SHF. (b) Schematic diagram of the dual-channel sensor based on dual LPFGs. (c) Side view of LPG-A. (d) Side view of LPG-B. (e) Top view of LPG-A. (f) Top view of LPG-B.
Fig. 2. Schematic diagram of the experimental setup for dual-LPG sensor fabrication.
Fig. 3. Transmission spectra for LPG-A (black line) and dual LPGs (LPG-A and LPG-B, red line) in air.
Fig. 5. (a) The transmission spectrum of LPG-A when we load the liquid samples in Channel-A. (b) The transmission spectrum of LPG-B when we load the liquid samples in Channel-A. (c) The transmission spectrum of LPG-A when we load the liquid samples in Channel-B. (d) The transmission spectrum of LPG-B when we load the liquid samples in Channel-B. (e) RI sensitivity of LPG-A and LPG-B when we load the liquid sample in Channel-A. (f) RI sensitivity of LPG-A and LPG-B when we load the liquid sample in Channel-B.
Fig. 6. Sensor output as determined by Eq. (
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Yu Zhang, Yongzhi Li, Chao Liu, Zhihai Liu, Yaxun Zhang, Xinghua Yang, Jianzhong Zhang, Jun Yang, Libo Yuan. Dual-channel microfluidic sensor based on side-hole fiber with two long-period fiber gratings[J]. Chinese Optics Letters, 2020, 18(2): 020601
Paper Information
Category: Fiber Optics and Optical Communications
Received: Sep. 16, 2019
Accepted: Nov. 1, 2019
Published Online: Dec. 30, 2019
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