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