A Highly Sensitive Fiber Optic Seawater Salinity Sensor Based on Few Interference Mode Mach-Zehnder Interferometer. - Ri-Qing Lv; Rui-Jie Liu; Yuxi Ma; Hao Gong; Xiong-Hao Su; Zi-Ting Lin; Man-Xi Zhang; Yong Zhao 005; Yu Wang 319 (IEEE Trans. Instrum. Meas., 2025)