Add to BibSonomy
Abstract
We propose a novel, to the best of our knowledge, scheme for dual vector millimeter-wave (mm-wave) signal generation and transmission, based on optical carrier suppression (OCS) modulation, precoding, and direct detection by a single-ended photodiode (PD). At the transmitter side, two independent vector radio frequency (RF) signals with precoding, generated via digital signal processing (DSP), are used to drive an in-phase/quadrature (I/Q) modulator operating at the optical OCS modulation mode to simultaneously generate two independent frequency-doubling optical vector mm-wave signals, which can reduce the bandwidth requirement of transmitter’s components and enhance spectral efficiency. With the aid of the single-ended PD and subsequent DSP at the receiver side, two independent frequency-doubling vector mm-wave signals can be separated and demodulated without data error. Based on our proposed scheme, we experimentally demonstrate the generation, transmission, and detection of 2-Gbaud 30-GHz quadrature-phase-shift-keying (QPSK) and 2-Gbaud 46-GHz QPSK signals over 10-km single-mode fiber-28 (SMF-28) and 1-m wireless transmission. The results indicate that the bit-error ratio (BER) of the dual vector mm-wave signals can each reach the hard-decision forward-error-correction (HD-FEC) threshold of 3.8 × 10−3.
© 2024 Optica Publishing Group
Full Article | PDF ArticleMore Like This
Xinying Li, Yuming Xu, and Jianjun Yu
Opt. Lett. 41(18) 4162-4165 (2016)
Hengxin Yan, Xinying Li, Xiaolong Pan, Tangyao Xie, Liye Fang, Jiahao Bi, Han Jiang, and Xiangjun Xin
Opt. Lett. 49(8) 1919-1922 (2024)
Lun Zhao, Jing Wang, Yejun Liu, Junxian Wu, Song Song, Tingwei Wu, and Lei Guo
Opt. Lett. 49(4) 879-882 (2024)