Lina Wang's research while affiliated with Shenzhen University and other places

... Since Wc Eickhoff et al. proposed the optical frequency domain reflectometry (OFDR) sensing system in 1981 [1], due to its advantage of high spatial resolution, it is now widely used in distributed measurement fields such as temperature measurement [2][3][4][5], strain measured [6][7][8][9], and shape sensing [10][11][12][13][14][15]. The cross-correlation algorithm (CCA) is a common data processing algorithm for OFDR systems, which calculates the wavelength shift value by comparing spectrum fingerprint peaks between the reference signal and the measured signal. ...

... In recent years, researchers have utilized various new two-dimensional (2D) nanomaterials such as graphene oxide (GO), molybdenum selenide (MoSe 2 ), black phosphorus (BP), and MXene to enhance the performance and biocompatibility of optical fiber sensors for biosensing [22][23][24][25]. In these materials, MXene is a promising option for use as a sensing material. ...

... Note that, for the calculation of V sens the knowledge of the salinity of the sample is necessary, for instance by advanced techniques as those reported in [54], [55]. Once V sens was calculated, the NP concentration (n P ) was estimated according to: ...

... In the past decade, optical fiber temperature sensor has been developed rapidly, because of its unique advantages such as high sensitivity, small size, light weight and immunity to electromagnetic interference [1][2][3][4][5]. Interferometers with different structures have built micro-nano laboratories on optical fibers to achieve the ultimate pursuit of sensitivity, including the Mach Zehnder interferometer (MZI) [6][7][8][9], Fabry Perot interferometer (FPI) [10][11][12], Michelson interferometer (MI) [13][14][15][16] and the Sagnac ring structure [17][18][19][20]. However, due to the limitation of demodulation mode, the OSA has a slow demodulation speed, which makes it very difficult to realize real-time online temperature monitoring [21][22][23]. ...

... Yi et al. Proposed a convex micro-cone structure for vectorization monitoring of curvature [2]. In this optical fiber structure, the size of the convex cone is very small, which is not different from the ordinary single-mode optical fiber in appearance. ...

... By converting the physical, chemical or biological quantities into changes in the refractive index of aqueous solutions, a variety of delicate designs of optical fiber sensors have been developed based on refractive index sensing [1][2][3][4][5][6][7][8][9][10]. Detecting the shift of interference resonant wavelength is one of the schemes to realize low detection limit of refractive index. ...

... Compared with conventional electrical sensors, optical fiber temperature sensors have the advantages of compact size, corrosion resistance, anti-electromagnetic interference, and the ability of remote on-line monitoring. Up to now, many types of optical fiber temperature sensors based on various principles and structures have been proposed and extensively studied, such as fiber Bragg gratings [1,2], Fabry-Perot interferometers [3,4], Mach-Zehnder interferometers [5,6], and Sagnac interferometers [7,8]. However, the sensitivities of the above sensors are relatively low, which limits their practical application. ...

... At present, various salinity sensors have been designed and manufactured by researchers based on different optical fiber sensing principles. Various salinity sensors based on fiber gratings, [16][17][18] surface plasmon resonance, [19][20][21] fiber resonators, 22,23 and optical fiber interferometers, [24][25][26][27] and so forth have been proposed and designed. For instance, Zhang and colleagues proposed and optimized a salinity sensor combined with grating fiber in 2003, but its salinity sensitivity was only 10.4 pm/‰. ...

... That same year, they designed a D-Shaped plasmonic PCF sensor that simultaneously measures both seawater temperature and salinity with the salinity sensitivity of 1.6 nm/%(kg/kg) and temperature sensitivity of 12.31 nm/•C . In 2019, Geng et al. (Geng et al. 2019) designed a micro-fluid refractive index sensor with a fiber length of only 60 mm, RI sensitivity of 6238.9 nm / RIU, and RI sensor resolution of 2.2 × 10 −5 RIU. All of the above studies adopt quartz fibers, and the transmission window of quartz fibers is 0.38-2.3 ...

... D. Leff et al. [14] presented a method for determining the temperature, dynamic strain magnitude, and dynamic strain spectral components using a single Surface Acoustic Wave Resonator (SAWR) sensor. Y. Geng et al. [15] have constructed a compact temperature sensor based on controllable four-wave mixing (FWM) by using a partially filled solid-core photonic crystal fiber (PCF). Teckjin Nam et al. [16] have proposed a method for temperature compensation of a thermal flow sensor. ...