Abstract
We demonstrate carrier-to-signal power ratio (CSPR) enhancement by self-seeded stimulated Brillouin scattering to improve the performance of Kramers–Kronig (KK) detection for multichannel single-sideband (SSB) signals. By virtue of low-CSPR transmission and high-CSPR detection, our proposed scheme effectively advances system performance by reducing propagation-induced distortion while maintaining the minimum phase condition. We experimentally demonstrate the improvement in CSPR and bit error rate of ${5} \times {10}$-Gbaud 16-QAM SSB signals by applying the carrier recovery block after 80-km transmission. Under optimum pump power, the average $Q$ factor improvement of all five channels is 3.0 dB. We also analyze the performances of different channels and the major limiting factor. The results verify that our scheme offers a promising solution to enhance SSB self-coherent KK detection in wavelength-division multiplexing systems.
© 2021 Optical Society of America
Full Article | PDF ArticleMore Like This
Chao Yu, Ran Gao, Fu Wang, Zhipei Li, Dong Guo, Huan Chang, Sitong Zhou, Xinyu Liu, Fei Wang, Yunshu Gao, and Xiangjun Xin
Opt. Express 30(16) 28251-28267 (2022)
Lior Blech, Cristian Antonelli, Antonio Mecozzi, Yonina C. Eldar, and Mark Shtaif
Opt. Lett. 45(13) 3494-3497 (2020)
Qiulin Zhang, Bofang Zheng, and Chester Shu
Opt. Lett. 43(6) 1367-1370 (2018)