Advanced Photonic Technologies for High-Speed Communications

Dear Colleagues,

Photonic technologies have played a key role in today’s ICT infrastructure worldwide. Technological advancements in optical fibers, transceivers, amplifiers, switches, and many other active/passive components have driven rapid upgrades in both the telecom and the datacom applications. Advanced modulation, coding, and digital signal processing techniques are among the key enabling technologies for such upgrades in both the line-side and client-side optics. On the wireless side, radio-frequency (RF) technologies have managed to fulfill the requirements of the initial phase of 5G infrastructure that is currently under deployment. However, the RF-based solutions may reach their upper physical limit to support future applications beyond the current generation. Subsequently, novel photonic technologies again show promising potential in supporting such a new wireless communication paradigm with RF-photonics or free-space optics.

In this Special Issue, we would like to showcase recent research efforts and results in physical layer optical communication technologies to address these upcoming challenges, demonstrating the capability and feasibility for future development.

Dr. Xiaodan Pang
Guest Editor

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