Fiber-optic Links – broadband fiber channels, optical fiber
Transmission FormatsBidirectional TransmissionActive Optical CablesFiber to The HomeFiber-Optic Links For Timing Distribution and Timing SynchronizationIt is possible to use optical links even to supply data over the “last mile” to single homes and offices. This technology is called fiber to the home(FTTH). In many cases, however, the last mile is still bridged with copper cables, and fiber-optic transmission occurs only up to some small stations close to the users.See more on rp-photonics Wikipedia
Wavelength-division multiplexing - Wikipedia
Channel plans vary, but a typical DWDM system would use 40 channels at 100 GHz spacing or 80 channels with 50 GHz spacing.
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