[1] Zhang L X, Li Y Q, An Q et al. Temperature sensing technology based on Rayleigh Brillouin optical time domain analysis with pulse coding[J]. Acta Optica Sinica, 37, 1106004(2017).
[2] Yang Z, Wang Z, Li Y Q et al. Optical fiber Brillouin scattering spectrum fitting of pulsed light[J]. Chinese Journal of Lasers, 50, 1906002(2023).
[3] Liu X Y, Chen L P, Chen Y M et al. Detection accuracy improvement of compact and low-cost BOTDR system using locally stimulated scattering excitation[J]. Acta Optica Sinica, 44, 1106006(2024).
[4] Zhao Z Y, Dang Y L, Tang M et al. Spatial-division multiplexed hybrid Raman and Brillouin optical time-domain reflectometry based on multi-core fiber[J]. Optics Express, 24, 25111-25118(2016).
[5] Liu Z J, Wu J Q, Zhang L X et al. Shape sensing based on Brillouin optical time domain analysis[J]. Acta Photonica Sinica, 53, 0406002(2024).
[6] Wrage M, Glas P, Fischer D et al. Phase-locking of a multicore fiber laser by wave propagation through an annular waveguide[J]. Optics Communications, 205, 367-375(2002).
[7] Pei L, Wang J S, Zheng J J et al. Research on specialty and application of space-division-multiplexing fiber[J]. Infrared and Laser Engineering, 47, 1002001(2018).
[8] He Y L, Zhang X, Zhu L Q et al. Optical fiber sensor performance evaluation in soft polyimide film with different thickness ratios[J]. Sensors, 19, 790(2019).
[9] Al-Ahmad O, Ourak M, van Roosbroeck J et al. Improved FBG-based shape sensing methods for vascular catheterization treatment[J]. IEEE Robotics and Automation Letters, 5, 4687-4694(2020).
[10] Liu Y, Zhou A, Yuan L B. Multifunctional fiber-optic sensor, based on helix structure and fiber Bragg gratings, for shape sensing[J]. Optics & Laser Technology, 143, 107327(2021).
[11] Deng S H, Wang T, Tan B H et al. Theoretical and experimental study on FBG bending sensor for quantitative monitoring of bolt looseness[J]. Measurement, 216, 113002(2023).
[12] Duncan R G, Froggatt M E, Kreger S T et al. High-accuracy fiber-optic shape sensing[J]. Proceedings of SPIE, 6530, 65301S(2007).
[13] Shao C, Yin G L, Lü L et al. OFDR with local spectrum matching method for optical fiber shape sensing[J]. Applied Physics Express, 12, 082010(2019).
[14] Chen Z E, Wang C H, Ding Z Y et al. Demonstration of large curvature radius shape sensing using optical frequency domain reflectometry in multi-core fibers[J]. IEEE Photonics Journal, 13, 6800809(2021).
[15] Zhao Z Y, Soto M A, Tang M et al. Distributed shape sensing using Brillouin scattering in multi-core fibers[J]. Optics Express, 24, 25211-25223(2016).
[16] Zafeiropoulou A, Masoudi A, Cooper L et al. Distributed shape sensing with a multicore fibre based on BOTDR technique[C], ThE15-28(2018).
[17] Zhang X P, Zhang Y X, Wang L et al. Current status and future of research and applications for distributed fiber optic sensing technology[J]. Acta Optica Sinica, 44, 0106001(2024).
[18] Zhang D Y, Yang Y, Xu J L et al. Structural crack detection using DPP-BOTDA and crack-induced features of the Brillouin gain spectrum[J]. Sensors, 20, 6947(2020).
[19] Jin S M, Yang Z S, Hong X B et al. Research progress of Brillouin optical time-domain analyzers based on optical pulse coding[J]. Acta Optica Sinica, 44, 0106014(2024).
[20] Wang J. Modeling analysis and optimization design of Simplex coding BOTDA system[D](2018).
[21] Vahesan S. Design and fabrication of an optical fiber interrogation instrumentation system[D], 33-54(2007).
[22] Zhao Z Y, Dang Y L, Tang M et al. Spatial-division multiplexed Brillouin distributed sensing based on a heterogeneous multicore fiber[J]. Optics Letters, 42, 171-174(2017).
