Category Archives: Fiber Optics

Frogs Love Fiber Optics — At Least in the Winter


I was doing some installation inspections when we disturbed the following creatures in two different fiber optic enclosures. Winter is coming and everyone wants to find a nice, warm place to wait it out. plains leopard frog tree frog

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Turning a Nonlinear Solution Into a Linear Solution


Introduction I have been reviewing some software used to calibrate an analog video receiver. While IP video is becoming more common, many homes still receive video service from an analog video feed over an optical network similar to that shown … Continue reading

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Powering Telecom Gear Using Energy Scavenging


I am seeing a lot of discussion in the electronic press about energy scavenging lately. I would argue that all the work I have done with powering fiber optic interfaces from solar power is part of that effort. There are … Continue reading

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Cost of Optical Fiber Versus Kite String


I try to help customers develop some perspective as to the cost of deploying fiber optic cable. Each cable can carry multiple fibers (see Figure 1). Customers will frequently ask about the incremental cost of adding an additional fiber to … Continue reading

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Sharks a Hazard For Submarine Cables


I have spent my share of time on a ship dealing with electronics being operated underwater — it is never easy or simple. It is easy to forget that there are creatures down there that also may want to cause … Continue reading

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Massive Bandwidth to Come From Wavelength Division Multiplexing and Coherent Communications


I was just reading an article on the FASTER project, which is a submarine cable project that will deliver an initial information capacity of 60 Terabits Per Second (Tbps) between the US and Asia. This is substantially more than the … Continue reading

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ITU 100 GHz Frequency Grid Math


Introduction A physicist in my group and I were having a discussion about how the wavelengths (i.e. colors) for lasers are specified by an international standard and I thought this discussion would provide a nice example of a differential approximation. … Continue reading

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