公开(公告)号：US12072218B1

公开(公告)日：2024-08-27

申请号：US18565314

申请日：2023-10-27

申请人： STATE GRID JIANGSU TAIZHOU POWER SUPPLY COMPANY

发明人： Ling Ju ,  Beibei Weng ,  Yanquan Zhu ,  Xingchun Xu ,  Xiaoyun Liao ,  Lijian Ouyang ,  Jun Xu ,  Li Liu ,  Yi Huang ,  Chuanlu Deng ,  Chengyong Hu

IPC分类号： G01D5/353 ,  H04J14/02

CPC分类号： G01D5/353 ,  H04J14/0215

摘要： Provided are a phase quadrature four-wavelength demodulation system and method of an optical fiber F-P cavity sensor. The phase quadrature four-wavelength demodulation system of the optical fiber F-P cavity sensor includes a flat ASE broadband light source, an optical fiber circulator, a dense wavelength division multiplexer, a photoelectric detector, and a data acquisition processing unit. The flat ASE broadband light source is connected to the optical fiber circulator, the optical fiber circulator is connected to the dense wavelength division multiplexer, the dense wavelength division multiplexer is connected to the photoelectric detector, and the photoelectric detector is connected to the data acquisition processing unit.