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Updated: May 22, 2026

Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping
Published on: March 20, 2017
All-optical microwave bandpass filter and phase shifter using a broadband optical source and an optical phase
Xiaoxiao Xue1, Xiaoping Zheng, Hanyi Zhang
1State Key Laboratory on Integrated Optoelectronics/Tsinghua National Laboratory for Information Science and Technology, Department of Electronic Engineering, Tsinghua University, Beijing, China. xxx03@mails.tsinghua.edu.cn
Abstract:
We propose a system that can perform microwave bandpass filtering and phase shifting simultaneously without redundant optical-electrical and electrical-optical conversions. The principle is based on polarization-dependant phase modulation of a broadband optical source and the variable optical carrier time shift method. A single-bandpass microwave photonic filter with a central frequency of 10.8 GHz, a 3-dB bandwidth of 670 MHz, and a 360° phase tuning range is experimentally demonstrated. The capability of our configuration to implement wideband phase shifters is also verified.
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