We propose and demonstrate free-space optical (FSO) communication using photonic crystal surface-emitting lasers (PCSELs). Unlike other types of conventional semiconductor lasers, such as edge-emit…
Dual-polarization (DP) arbitrary optical unitary processor (OUP) is a critical device to realize an energy-efficient multi-input-multi-output (MIMO) process of mode-division multiplexed (MDM) syste…
Angle modulation, such as phase and frequency modulation (FM/PM), has recently attracted attention for improving the fidelity of analog optical links. This is because angle modulation can enhance t…
We report the signal transmission with an analog radio over multi-mode fiber (A-RoMMF) subsystem using a single-mode vertical cavity surface emitting laser and a cost-efficient bias-tee consisting …
Recent studies have shown that the self-coherent systems, including the bi-directional, the Stokes-vector-modulation direct-detection (SVM-DD), and the Kramers-Kronig (KK) schemes, have the potenti…
In this paper, we present and experimentally demonstrate a broadband intermediate frequency-over-fiber (IFoF) system with adaptive frequency transmit diversity for the next generation mobile fronth…
We present an intermediate frequency-over-fiber (IFoF) transmission system that uses cascaded connections between a broadband link and multiple narrowband links for future mobile fronthaul (MFH). T…