Real-time Unrepeatered Transmission of 28.13Pb/s·km with 800G Transciever and Novel Bi-Directional ROPA

We first experimentally demonstrate real-time $76.8 \mathrm{~Tb} / \mathrm{s}$ ($96 \times 800 \mathrm{G}$) unrepeatered transmission over 366.3 km employing C- and L- bands, which corresponds to a record capacitydistance product exceeding $28.13 \mathrm{~Pb} / \mathrm{s} \cdot \mathrm{km}$, using commercial C+L 800 G coherent transciever, high-order remote pumping unit, optimized C+L remote gain unit, and ultra low-loss G.654E fiber.