Technical Perspectives
Insights
Engineering articles on optical transport networks, DWDM design, and coherent optics. Written from real carrier network experience.
Published
June 2026 · 7 min read
FEC in Coherent DWDM: Why Your Link Budget Might Be Wrong
How sFEC net coding gain is misapplied in link budget tools — and the field-observed OSNR thresholds that actually matter for 800G and 400G systems.
FEC
OSNR
800G
Link Budget
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Coming Soon
The Case for GSNR Over OSNR in Modern 800G Deployments
Why generalized SNR is becoming the defining metric for coherent transport planning.
GSNR
800G
Coming Soon
DWDM Capacity Planning in the Age of AI-Driven Traffic Growth
How AI workloads are reshaping optical transport architecture decisions for ISPs and national operators.
Capacity
AI