Lucas and Luna explore the unsung hero of long-haul internet infrastructure: the erbium-doped fibre amplifier (EDFA). They explain how this device amplifies light signals without converting them to electricity, enabling transoceanic cables to carry terabytes per second. The episode drills into a 2025 upgrade of the SEA-ME-WE 6 cable system, where next-generation EDFAs increased capacity by 40 percent without laying new fibre. Lucas breaks down the physics simply, and Luna draws a parallel to noise amplification in audio systems. They discuss how EDFAs affect routing economics and latency, and why they matter for cloud providers and AI training across continents. The hosts also touch on the recent shift toward Raman amplification as a complementary technique., This is a standalone episode that assumes no prior knowledge of photonics or optical networking.
#EDFA #ErbiumDopedFibreAmplifier #OpticalAmplification #SEAMEWe6 #TransoceanicCables #FibreOptic #SubmarineCable #InternetInfrastructure #RamanAmplification #DWDM #Photonics #NetworkLatency #CloudNetworking #AITraining #Technology #FexingoBusiness #BusinessPodcast #TechDeepDive
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