The long-heralded promise of hollow core fiber (HCF) for lower latency and more efficient data transmission over long distances has come closer to commercial realization after separate trails by ZTE and China Mobile. Both trials featured technology from Yangtze Optical Fiber and Cable (YOFC), including the cables, essential splicing services, and adapters for integration with single-mode fibers. Both demonstrations were also over 20 km links, in the latest ZTE case to demonstrate real-time transport at 1.2Tb/s over a single wavelength with 3W launch power, celebrated as an industry first. This came just three few weeks after China Mobile launched a HCF transmission test network operating at 800 Gbps, also over a single wavelength. Conducted in Shenzhen-Dongguan, Guangdong, China Mobile said this…