Research Article
28-GHz RoF Link Employing Optical Remote Heterodyne Techniques with Kramers–Kronig Receiver
@INPROCEEDINGS{10.1007/978-3-030-06161-6_34, author={Yuancheng Cai and Xiang Gao and Yun Ling and Bo Xu and Kun Qiu}, title={28-GHz RoF Link Employing Optical Remote Heterodyne Techniques with Kramers--Kronig Receiver}, proceedings={Communications and Networking. 13th EAI International Conference, ChinaCom 2018, Chengdu, China, October 23-25, 2018, Proceedings}, proceedings_a={CHINACOM}, year={2019}, month={1}, keywords={Millimeter-wave Radio-over-fiber (RoF) Optical heterodyning Fiber optics communication}, doi={10.1007/978-3-030-06161-6_34} }- Yuancheng Cai
Xiang Gao
Yun Ling
Bo Xu
Kun Qiu
Year: 2019
28-GHz RoF Link Employing Optical Remote Heterodyne Techniques with Kramers–Kronig Receiver
CHINACOM
Springer
DOI: 10.1007/978-3-030-06161-6_34
Abstract
We propose and demonstrate a 28-GHz optical remote heterodyne RoF link using KK receiver for the first time. An optical SSB modulated signal is obtained utilizing an IQ modulator and two free-running lasers. Due to its minimum phase property, KK algorithm can be adopted to reconstruct the complex 16-QAM signal from the received intensity signal. This scheme is effective in eliminating the SSBI penalty introduced by square-law detection. Through the use of the KK receiver, the power penalty caused by the 80 km SSMF transmission is found to be less than 1 dB with digital CDC post processing. The KK-based receiver can also provide about 2 dB advantage over the traditional receiver at the 7% HD-FEC threshold in the case of 28 GBaud rate transmission over 80 km fiber. Furthermore, as the baud rate increases, the benefit of KK receiving scheme is more obvious and superior than that of the traditional receiving scheme.
