Submarine and Long-Haul
Every feasibility question in optical transport reduces to a short chain of coupled quantities:... …
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August 1, 2026
Opening the L-band doubles the spectrum on fibre you already own, and hands the line-system... …
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August 1, 2026
Availability is a design output, not an operational aspiration. This article works from measured failure statistics through topology... …
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July 31, 2026
At a fixed symbol rate the required optical signal-to-noise ratio (OSNR) of a modern coherent line interface rises in near-uniform......
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July 26, 2026
Inter-channel stimulated Raman scattering inverts the expected performance ranking of a coupled C+L line system: the L-band gains... …
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July 26, 2026
Segment decoupling as the design tool when one span dominates the noise budget: the arithmetic that locates a regeneration site,......
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July 26, 2026
How a modern line system propagates per-channel power, OSNR, accumulated nonlinearity, dispersion, PMD and tilt hop by hop,... …
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July 26, 2026
Activating the L-band on a fiber already carrying C-band traffic changes the operating point of every in-service channel. This article......
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July 26, 2026
A requirements-to-architecture framework for optical transport: topology selection, CDC-F ROADM node design, GSNR link budgets, layered... …
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July 19, 2026
Optical Layer Threat Modeling: Taps, Jamming and Control Plane Attacks Optical Layer Threat Modeling: Taps, Jamming, Spoofed Supervision and Control...
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July 18, 2026
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