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What Is the Role of Optical Transceivers in AI Data Centers
By C-LIGHT Marketing丨Oct 12, 2026
Optical transceivers connect AI servers and switches through high-speed fiber, enabling 400G and 800G bandwidth, scalable networks, and reliable data transfer.
How 800G Optical Transceivers Support AI GPU Clusters
By C-LIGHT Marketing丨Oct 11, 2026
800G optical transceivers connect AI GPU clusters with high-bandwidth links, supporting scalable fabrics, faster data exchange, and efficient inter-switch communication.
Why Circulators Cannot Replace 100G/40G BiDi Optics for Single-Fiber Bidirectional Transmission with Duplex QSFP28/QSFP+ Transceivers
By C-LIGHT Marketing丨Oct 10, 2026
Circulators separate directions but not wavelengths. Duplex transceivers use the same wavelength for transmit
How AI Workloads Are Changing Data Center Networking
By C-LIGHT Marketing丨Oct 9, 2026
AI training and inference are reshaping data center networks from top to bottom. Explore how east-west traffic, rail-optimized topologies, RoCE vs InfiniBand, elephant flows, optical interconnects, and the Ultra Ethernet Consortium are redefining network design for the AI era.
What Is BER Testing?
By C-LIGHT Marketing丨Oct 8, 2026
BER testing measures the bit error rate of a digital link. Learn how BERT works, pre-FEC vs post-FEC BER, eye diagrams, bathtub curves, PAM4 BER challenges, and BER targets for 400G, 800G, and 1.6T optical interconnects.
When to Use AEC Cables
By C-LIGHT Marketing丨Oct 7, 2026
AEC cables bridge the gap between copper DAC and optical AOC. Learn when to use Active Electrical Cables, how Retimer-based signal conditioning extends copper reach, and how AEC compares to DAC, ACC, and AOC at 400G, 800G, and 1.6T.
When to Use AOC Cables
By C-LIGHT Marketing丨Oct 6, 2026
AOC cables bridge the gap between copper DAC and discrete optical modules. Learn when to use active optical cables for 3-100m links, how AOC compares to DAC, AEC, and optics, and how reach evolves at 400G, 800G, and 1.6T.
When to Use DAC Cables
By C-LIGHT Marketing丨Oct 5, 2026
DAC cables remain the lowest-cost, lowest-latency interconnect for short-reach data center links. Learn when passive or active DAC beats AOC, AEC, and optics, and how reach shrinks at 400G, 800G, and 1.6T.
Why 1.6T Uses PAM4
By C-LIGHT Marketing丨Oct 4, 2026
PAM4 enables 1.6T Ethernet by doubling bits per symbol versus NRZ. Explore the modulation trade-offs, SNR challenges, DSP role, and why PAM4 remains the standard for 1.6T optical interconnects.
Why CPO Matters for AI Data Centers
By C-LIGHT Marketing丨Oct 3, 2026
CPO brings optical engines closer to switch ASICs to improve bandwidth density and power efficiency in AI data centers. Compare CPO with pluggable optics, LPO, and NPO.
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