4K Ultra HD is another major technological change in the broadcast and television field after digitization and high definition.

Prevail Optoelectronics'《4K live on-demand IPQAM access solution》combines the advantages of the 1550nm broadcast TV transmission system and the PON system. It adopts the latest 4K VODIPQAM technology, WDM technology, 1550nm direct modulation insertion technology, and low-cost FTTH ONU technology.，which can realize live broadcasting and on-demand of 4K channels, and can gradually complete the expansion of 4K on-demand capacity according to the actual access rate to avoid excessive one-time investment. It is especially suitable for the network that has completed FTTH transformation, and can realize plug and play.