A Reconfigurable Microwave Photonic Channelized Receiver Based on Dense Wavelength Division Multiplexing Using an Optical Comb

作者：Li Ze; Zhang Xianmin^*; Chi Hao; Zheng Shilie; Jin Xiaofeng; Yao Jianping

来源：Optics Communications, 2012, 285(9): 2311-2315.

DOI：10.1016/j.optcom.2012.01.023

• Microwave photonics
• Microwave frequency measurement
• Channelized receiver
• Optical comb

A photonic approach to implementing a microwave channelized receiver based on dense wavelength division multiplexing using an optical comb is proposed. In the approach, a flat optical comb with 11 comb lines is generated using two cascaded Mach-Zehnder modulators. Frequency analysis of a microwave signal with multiple-frequency components is realized by using the optical comb together with an optical etalon with a periodic transfer function, a wavelength division multiplexer (WDM) and a photodetector array. The system is investigated numerically. Frequency measurement of a multi-frequency signal with a measurement range from 0.5-11.5 with an accuracy of +/- 0.5 GHz is achieved. The reconfigurability of the system realized by tuning the comb-line spacing and the peak positions of the etalon is also evaluated. The improvement of the dynamic range of the system using an optimized periodic filter is also discussed.

• 出版日期2012-5-1
• 单位浙江大学