Sensitivity-Enhanced RI Sensor Based on Cascaded Microfiber Mach-Zehnder Interferometers Near the Dispersion Turning Point With Vernier Effect. - Xianchao Yang; Chengyuan Hu; Guan Yang; Meize Chen; Pibin Bing; Runtao Yang; Di Zhang 002; Xiaonan Yang; Yuhuai Liu (IEEE Trans. Instrum. Meas., 2024)