In backbone and inter-city transmission, every decibel of signal integrity matters. Over hundreds or even thousands of kilometers, conventional transponders often face serious OSNR degradation and bit error accumulation.
The HTF 400G OEO redefines long-distance optical transmission with its CFP2 coherent line interface and advanced SDFEC forward error correction.
It supports modulation formats from QPSK to 16QAM, achieving up to 2000 km of transmission distance without regeneration.
By integrating optical amplification (EDFA/OLP/DCM) and network monitoring, the system provides full optical-layer protection and intelligent error recovery.
For telecom carriers and backbone network operators, HTF 400G OEO ensures high bandwidth, ultra-low latency, and outstanding stability, even under complex field conditions.
Its real-time OSNR monitoring and adaptive wavelength management allow proactive maintenance, Low power consumption, energy-efficient deployments.
With HTF 400G OEO, operators can bridge provinces, regions, and even continents-turning distance from a challenge into a competitive advantage in the era of global data acceleration.

















