Ciena's 6500 Packet-Optical Platform equipped with WaveLogic 5 Extreme coherent transceivers will allow Telekom Srbija to deliver 800 Gb/s across a new 150-kilometer fiber route between Serbia and Bosnia-Herzegovina. WaveLogic 5 Extreme is a high-performance optical signal processing chip used in fiber‑optic network gear to send far more data over the same strand of glass by encoding and decoding complex light patterns. For investors, its importance lies in enabling carriers to boost capacity and offer faster. While 400G Ethernet optical transceivers are used predominantly in hyperscale data centers, and many enterprise businesses are currently operating on 40G or 100G, data center connectivity development is already moving towards 800G ultra-high-speed 800 Gigabit Ethernet.