How Internet is Delivered - Data Centers and Infrastructure - EEs Talk Tech #12

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Mike Hoffman and Daniel Bogdanoff continue their discussion with Stefan Loeffler about optical communication.

This week we look at how internet gets delivered to homes and businesses. Full agenda below!

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This episode: https://EEsTalkTech.com/internet-delivery

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Agenda: Optical Communication Infrastructure 00:30 Optics = Laser-driven Netflix delivery system Client-side vs line-side 1:00 Line-side is the network that transports the signals from the supplier to the consumer Client-side is the equipment that is either a consumer or business, accepting the data from the network provider.

Yellow cables in your wall = fiber 1:40

Getting fiber direct to antenna is new tech 2:30 Must have power at the antenna 2:45 Typically there's a "hotel" or  base station at the base of the antenna where the power is and where fiber connects New antennas have fiber running all the way up the pole  3:28

Network topologies- star, ring, and mesh 3:42 Base stations are usually organized in a star network pattern. A star network starts at a single base station and distributes data to multiple cells Ring networks are popular in metro infrastructure 4:20 -like traffic circles for data. An advantage of ring and mesh is built-in resilience Mesh topologies have more bandwidth but require more fiber 7:10

How consumers get fiber 9:20 Business or academic campuses typically utilize mesh networks on the client side, subscribing to a fiber provider Fiber itself or a certain bandwidth using that fiber can be leased If you're a business, like a financial institution, and latency or bandwidth is critical, leasing fiber is necessary so you have control over the network 9:45

What's the limiting factor of optical?  What are the limitations of the hardware that's sending/receiving optical signals? 11:08 Whatever we do in fiber, at some point, it is electrical 11:27 There will be a tipping point where quantum computing and photon-computing (optical computing) comes into play 11:40 Will optical links ever compete with silicon? Maybe we will have optical computers in the future 12:02 The limiting factor is the power supply 12:40 What's costing all this energy? 12:58 The more data (bits and bytes) we push through, the more energy in the form of optical photons or electrons we are pushing through. We also must use a DSP for decoding which costs energy One of the first 1 ... https://www.youtube.com/watch?v=wZOO5yzUXcU