Title :
Highly linear downconverting microwave photonic link based on digital post-processing
Author :
Yan Cui ; Yitang Dai ; Kun Xu ; Xin Zhong ; Wenliang Li ; Tao Zhou
Author_Institution :
Sci. & Technol. on Electron. Inf. Control Lab., Chengdu, China
Abstract :
In this paper, we investigate the linearization in frequency down-converting microwave photonic link incorporating digital signal processing (DSP) technique. By acquiring the output intercept point directly from the system hardware, this proposed DSP technique is capable of suppressing both the third-order and the fifth-order inter-modulation distortion. Experiment results show a spurious-free dynamic range of 129.6 dB in 1 Hz bandwidth. Moreover, a noise figure of 6.4 dB is achieved.
Keywords :
intermodulation distortion; microwave photonics; optical links; signal processing; DSP; DSP technique; digital signal processing technique; fifth-order intermodulation distortion; frequency down-converting microwave photonic link; noise figure; third-order intermodulation distortion; Distortion; Microwave communication; Noise; Noise measurement; Optical distortion; Optical fiber communication; Photonics; Microwave photonic link; nonlinearity; spurious-free dynamic range;
Conference_Titel :
Optical Communications and Networks (ICOCN), 2015 14th International Conference on
Conference_Location :
Nanjing
DOI :
10.1109/ICOCN.2015.7203675
