Integrated Fabry–Perot interferometer based on Er/Yb co-doped fiber for all-optical phase modulation  

作　　者：汪凡 林思雨 曲彦臣 韩晓鹏 掌蕴东 Fan Wang;Siyu Lin;Yanchen Qu;Xiaopeng Han;Yundong Zhang(National Key Laboratory of Tunable Laser Technology,Institute of Opto-Electronics,Harbin Institute of Technology,Harbin 150080,China)

机构地区：[1]National Key Laboratory of Tunable Laser Technology.Institute of Opto-Electronics,Harbin Institute of Technology,Harbin 150080,China

出　　处：《Chinese Optics Letters》2024年第4期95-100,共6页中国光学快报（英文版）

基　　金：supported by the National Key Research and Development Program of China (No. 2018YFC1503703);the Shanghai Academy of Spaceflight Technology(No. SAST2019-127)。

摘　　要：Fast and stable phase control is essential for many applications in optics. Here, we propose an all-fiber all-optical phase modulation scheme based on a Fabry–Perot interferometer(FPI) and an Er/Yb co-doped fiber(EYDF). By using the EYDF as an F-P cavity via rational design, a phase shift with a modulation sensitivity of 0.0312π/mW is introduced to the modulator.The phase shifts in the EYDF consist of a thermal phase shift and a nonlinear phase shift with a ratio of 19:1, and the corresponding temporal responses of the modulation are 204 ms and 2.5 ms, respectively. In addition, the compact FPI is encapsulated to provide excellent stability for the modulator.

关 键 词：in-line Fabry-Perot interferometer nonlinear phase shift all-optical phase modulation 

分 类 号：TN253[电子电信—物理电子学] TN761