Lightron Showcases Latest 100G Optical Communication Technology at 'European Optical Communication Conference 2023'

Lightron, a specialized manufacturer of optical communication module components (CEO Park Chan-hee), announced on the 26th that it will exhibit its 100G QSFP28 PSM4 integrated optical transceiver product at the 'European Optical Communication Conference 2023' held in Glasgow, UK, from October 1 to 5.

The European Optical Communication Conference is the largest optical communication exhibition in Europe, with participation from more than 350 optical communication component manufacturers, equipment makers, and telecommunications companies worldwide. Lightron is participating as part of the 'Demonstration Support Project for Optical Communication Components for Intelligent Information Networks,' promoted by KT, the Ministry of Science and ICT, and the National Information Society Agency (NIA). Through this project, Lightron will showcase the 100G QSFP28 PSM4 integrated optical transceiver product developed under the initiative.

The 100G QSFP28 PSM4 integrated optical module developed by Lightron is a device that improves the speed and scalability of existing equipment. In terms of speed, it increases the transmission speed of the front haul connecting the distributed unit (DU) and remote unit (RU) of the 5G access network from the existing 10Gbps to 25Gbps. Regarding scalability, it allows one 100Gbps interface and optical module to accommodate four 25Gbps RUs. Previously, each DU port could connect to only one 25Gbps RU, but by utilizing this device, the integration density of the DU interface is increased, which is expected to reduce the cost of facility and equipment construction within the central office.

The 100G QSFP28 PSM4 integrated optical transceiver can be described as a structure integrating four 25G optical transceivers. In this product, each 25Gbps signal can be transmitted or received separately, and signals from separate RUs can be integrated and connected to the communication network. To integrate four optical sub-assemblies into one QSFP28 product in this development, Lightron directly developed an ultra-compact TOSA/ROSA/BOSA structure, and PCB technology was applied to eliminate x-talk in each channel.

A Lightron representative stated, “This technology development is the result of the 'Demonstration Support Project for Optical Communication Components for Intelligent Information Networks' by the Ministry of Science and ICT and the National Information Society Agency (NIA). The demand-supply linkage support, organized by the KT consortium, played a significant role.”