Abstract

In this Letter, we propose a simplified carrier-assisted differential detection (CADD) receiver with interleaved subcarrier loading scheme to further reduce the system hardware complexity while preserving the capability of field recovery of double sideband (DSB) complex-valued signals at the low carrier to signal power ratio (CSPR) condition. The numerical results show that the simplified CADD receiver requires less gap subcarriers to achieve a bit-error-rate (BER) below the 7% hard-decision forward error correction (HD-FEC) limit of 3.8 × 10⁻³ as compared with a conventional CADD receiver. Despite the robustness to the time delay fluctuation decreases, which can be avoided using time-independent components in place of time delay line, more than a 3.2-dB optical signal-to-noise ratio (OSNR) gain can be obtained regardless of CSPR.

© 2023 Optica Publishing Group

Offset double sideband carrier assisted differential detection with field recovery at low carrier-to-signal power ratio

Peng Qin, Chenglin Bai, Zhiguo Wang, Hengying Xu, Lishan Yang, YiNing Zhang, Peiyun Ge, and Xueyuan Luo
Opt. Express 30(26) 48112-48132 (2022)

Joint signal-to-signal beat interference mitigation for the field recovery of symmetric carrier-assisted differential detection with low carrier-to-signal power ratio

Zihua Huang, Jianping Li, Xinkuo Yu, Jianqing He, Jianbo Zhang, Kangping Zhong, and Yuwen Qin
Opt. Express 32(10) 18044-18054 (2024)

Symmetric carrier assisted differential detection receiver with low-complexity signal-signal beating interference mitigation

Yixiao Zhu, Longsheng Li, Yan Fu, and Weisheng Hu
Opt. Express 28(13) 19008-19022 (2020)

Carrier assisted differential detection with a generalized transfer function

Honglin Ji, Miao Sun, Chuanbowen Sun, and William Shieh
Opt. Express 28(24) 35946-35959 (2020)

Carrier-assisted differential detection with reduced guard band and high electrical spectral efficiency

Jingchi Li, Shaohua An, Honglin Ji, Xingfeng Li, William Shieh, and Yikai Su
Opt. Express 29(21) 33502-33511 (2021)