Future Proof 8 Channel DWDM Box Supports 100GHz or 200GHz Grid Spacing 1. Ultra-Long-Haul Transmission: 2000km Relay-Free Transmission The 8CH DWDM MUX employs advanced optical amplification technology and dispersion compensation modules to achieve relay-free transmission over a single span of 2000 km. By leveraging the synergistic effect of EDFA (Erbium-Doped Fiber Amplifier) and Raman amplification, it effectively overcomes fiber attenuation limitations, reducing relay