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- Title
Research Progress on Carrier-Free Phase-Retrieval Receivers.
- Authors
Ma, Yunhe; Xiang, Meng; Gan, Xiaoxue; Wei, Can; Cheng, Wenzhuo; Zhou, Gai; Li, Jilong; Li, Jianping; Fu, Songnian; Qin, Yuwen
- Abstract
In order to deal with the chromatic dispersion-induced power fading issue for short-reach direct-detection optical fiber communication applications, such as the ever-increasing data-center interconnections (DCIs), optical filed recovery is intensively being under investigation. To date, various direct detection schemes capable of optical field recovery have been proposed, including the Kramers–Kronig (KK) receiver, asymmetric self-coherence detection (ASCD) receiver, carrier-assisted differential detection receiver (CADD), Stokes vector receiver (SVR), and carrier-free phase-retrieval (CF-PR) receiver. Among those, the CF-PR receiver attracts lots of research attention because it can circumvent the requirement of a strong continuous-wave (CW) optical carrier for the beating with the signal. Generally, the CF-PR receiver consists of only two single-ended photodiodes (PDs) and one dispersive element, for the field recovery of the quadrature amplitude modulation (QAM) signals. Based on the theoretical and experimental studies reported so far, this paper reviews the latest progress of CF-PR receivers designed for high-speed optical short-reach transmission links.
- Subjects
OPTICAL fiber communication; QUADRATURE amplitude modulation; OPTICAL dispersion; STOKES parameters; LIGHT transmission; DIGITAL signal processing
- Publication
Photonics, 2024, Vol 11, Issue 1, p54
- ISSN
2304-6732
- Publication type
Article
- DOI
10.3390/photonics11010054