Author:
Shu Xiaoqian,Cheng Zhuo,Ma Lingmei,Chen Bigeng,Li Caiyun,Sun Chunlei,Wei Maoliang,Yu Shaoliang,Li Lan,Lin Hongtao,Rao Yunjiang
Abstract
An ultra-high Extinction Ratio of 60-dB on-chip electro-optical modulator based on silicon serially-coupled micro-ring structure is reported and successfully applied in a fiber-optic distributed acoustic sensing system for the first time, achieving pico-strain level sensitivity.