Enabling launch of higher signal power into span and reduction of amplifier noise, TeraWave™ SCUBA Optical Fiber is optimized for ultra-long haul networks up to 12,000 km using advanced modulation formats and coherent detection. Effective area (153 m²), cabling performance in C- and L-bands, and attenuation (0.155 dB/km @ 1550 nm) promote reliable, coherent transmission at 100 Gbps and beyond over transoceanic distances at high channel counts.