This is a new service released by 2020 and used by satellite and other applications.
8K 2d and 8K 3d is ultra high definition resolution picture and video
Use 7680 * 4320 resolution
This service require 120 Mbps rates for transferring data
And need not more than 20 millisecond latency
Supported in the backbone network using liquid OTN
Liqueed OTN is the successor of traditional OTN
Solve all OTN problems which is as follow :
1- Insufficient pipe elasticity
2- small number of pipe connection
3- inflexible bandwidth adjustment
4- high pipe latency
From my own point of view the main limitations of OTN is that the minimum pipe of it is ODU 0 which is 1.25 Gbps
So if we need to carry tributary service with low rate like STM 1 , STM 4 , the bandwidth utilization will be very low
and when we try to carry private line service from customers and we have 100 GBPS line , the maximum of private lines will be 80 only.