As the demand for ultra-high-speed wireless communication grows, breakthroughs in millimeter-wave, massive MIMO, high-directive antennas, and reconfigurable reflective surfaces propel RF-based solutions towards 6G. However, reaching the Tbps milestone faces exponential resistance due to RF licensing constraints and physical limitations like bandwidth and free-space loss. This project embarks on an innovative journey to explore the immense potential of FSO for overcoming these challenges, leveraging its inherent higher directivity, broader bandwidth, and superior spatial resolution. Our groundbreaking approach focuses on the long-wave infrared (LWIR, 8-12µm, 25-40 THz) region, where issues like eye-safety and atmospheric perturbation sensitivity diminish or vanish. We aim to establish a new technological benchmark for FSO systems while nurturing the next generation of experts in this field. Key objectives include: 1. State-of-the-art QCL-based LWIR transceivers with high-speed modulation capabilities. 2. Designing holographic surfaces for LWIR beam steering and spatial multiplexing. 3. Innovating control and DSP algorithms for spatial resource allocation and multiplexing. 4. Analyzing overall system performance with proof-of-concept demonstrations. Our project will generate valuable knowledge and be disseminated through publications and patents, advancing the future of wireless communication.