Mobile Optical Communications Using Second Harmonic of Intra-Cavity Laser

Optical wireless communication (OWC) meets the demands of future six-generation mobile network (6G) as it operates at several hundreds Terahertz and has potential to enable data rate in order Tbps. However, most beam-steering OWC technologies require high-accuracy positioning high-speed control. Resonant beam (RBCom), one kind non-positioning technologies, been proposed for high-rate communications. The mobility RBCom relies on its self-alignment characteristic where no is required. In a previous study, an external-cavity second-harmonic-generation (SHG) system eliminating echo interference inside resonator. energy conversion efficiency complexity are concern. this paper, we propose intra-cavity SHG simplify design improve efficiency. We elaborate structure establish analytical model. Numerical results show that consumption reduced reach same level channel capacity receiver compared with one.