Latest developments in the optical communications industry丨C-LIGHT

100G ER4 vs. LR4: A Transceiver Selection Guide for Long-Haul Applications

Jan-13-2026

100G optical transceivers are core components of high-speed networks, with ER4 and LR4 being two mainstream long-distance solutions.

What is the difference between QSFP and QSFP28?

Jan-12-2026

QSFP and QSFP28 are both transceivers used in data centers and networks, but they differ mainly in speed and intended application.

What is the Relationship Between AI and Optical Modules

Jan-11-2026

The relationship between artificial intelligence (AI) and optical modules is one of mutual acceleration and fundamental dependence.

What is a Fiber Trunk Cable?

Jan-10-2026

A fiber trunk cable is a high-capacity, pre-terminated fiber optic cable assembly designed to carry multiple data channels simultaneously between key infrastructure points within a network.

How to Choose a QSFP28 100G ER4

Jan-09-2026

QSFP28 100G ER4 stands out for its ultra-long transmission distance of 40 kilometers, making it an ideal choice for connecting campus networks, metropolitan area networks, and critical data center nodes

QSFP28 100G ER4 Optical Module:Technologies and Applications for 40km Transmission

Jan-08-2026

QSFP28 100G ER4 optical module, with its compact design and robust 40km transmission capability, has emerged as a core component enabling high-performance network expansion.

Application and Market Prospects of DWDM 100G

Jan-07-2026

DWDM 100G technology is central to optical communication networks, significantly enhancing network capacity and transmission efficiency by carrying multiple 100Gbps channels over a single fiber.

NVIDIA Unveils Rubin Platform: Achieving 50 PetaFLOPS of Computing Power

Jan-06-2026

Jensen Huang elaborated on how the Rubin platform maximizes system performance through the extreme co-design of GPUs, CPUs, network chips, switches, and NVLink. In demonstrations

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100G optical transceiver Data Center OTN network 200G optical transceiver 400G optical transceiver PON network 800G transceiver 10G copper sfp/sfp+ 100G QSFP28 ER4 800G Optical transceiver