Xian Dong, Youhang Xie, Chuang Wu, Jie Li, Baiou Guan. Supermode Bragg Grating Inscribed in a Strongly Coupled Seven-Core Fiber and Its Response Characteristics to Temperature and Strain[J]. Laser & Optoelectronics Progress, 2023, 60(9): 0906007
- Laser & Optoelectronics Progress
- Vol. 60, Issue 9, 0906007 (2023)
Fig. 1. Diagram of strongly coupled seven-core fiber. (a) SEM photo of the cross-section of the strongly-coupled SCF used in the experiment; (b) schematic diagram of central alignment splicing of SMF-SCF-SMF
Fig. 2. FBG inscription. (a) Schematic diagram of FBG inscription into the SCF; (b) schematic diagram of FBG
Fig. 3. Measured transmission spectrum of the SCF-FBG
Fig. 4. Temperature response measurement system
Fig. 5. Transmission spectra of the fiber sensor for various temperatures. Inset: wavelength shift of dip1 and FBG-S1 and FBG-S2 with temperature
Fig. 6. Transmission spectra of temperature response. (a) Relation between wavelength and temperature of dip1; (b) relation between wavelength and temperature of FBG-S1 and FBG-S2
Fig. 7. Strain response measurement system
Fig. 8. Transmission spectra of the fiber sensor for various strains. Inset: wavelength shift of dip1 and FBG-S1 and FBG-S2 with strain
Fig. 9. Transmission spectra of strain response. (a) Relation between wavelength and strain of dip1; (b) relation between wavelength and strain of FBG-S1 and FBG-S2
Fig. 10. Calculated results with Eq. (12) compared with applied curvature and temperature
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