| 1. | Most of today ’ s demodulation techniques rely on optical filtering method , such as bulk optical edge filters , scanning fiber fabry - perot filters , wdm fiber couplers , acousto - optic tunable filters and mach - zehnder filters 目前,以布喇格光纤光栅( fbg : fiberbragggrating )为传感器件的传感器已成为研发主流。 |