In the section 1. Connecting two hosts, there's imho a counter-sense which has remained unseen ... up to now :-)
Due to the different modes of propagation of light, monomode fibers are limited to distances of a few kilometers while multimode fibers can be used over distances greater than several tens of kilometers. In both cases, repeaters can be used to regenerate the optical signal at one endpoint of a fiber to send it over another fiber.
Monomode fibers have a much longer range than multimode because, thanks to the fact that there's one single wavelength, the signal doesn't get distorted. (Cross-checked w/ "Réseaux" - A. Tannenbaum p. 99-103).
In the section 1. Connecting two hosts, there's imho a counter-sense which has remained unseen ... up to now :-)
Monomode fibers have a much longer range than multimode because, thanks to the fact that there's one single wavelength, the signal doesn't get distorted. (Cross-checked w/ "Réseaux" - A. Tannenbaum p. 99-103).