Free-Space Terabit Optical Interconnects

The continuous growth of Internet data traffic is progressively increasing the pressure over wireless access technologies. To overcome imminent bandwidth bottleneck, free-space optics (FSO) currently deemed as a key breakthrough towards next-generation ultra-high-capacity links. As this technology matures, it starting to find its place not only in future mobile networks, but also applications such datacenter interconnections, satellite communications and high-frequency trading. meet ever-increasing demand for high-capacity links, future-proof FSO systems should seek maximum compatibility with state-of-the-art optical fiber systems, which nowadays can already provide rates per channel Terabit/s range. However, ultra-wideband potential comes at expense very tight requirements terms beam alignment, so that reliable end-to-end be ensured. Following research challenge, work we demonstrate dynamic single-wavelength 1 Tbps link high pointing error tolerance, boosted by adaptive probabilistic constellation shaping (PCS) an active gimbal-based acquisition, tracking (ATP) mechanism. Our results successful indoor transmission 3 m enhanced resilience errors, enabling adapt rate range 0.8–1 Tbps.