In the early days of fiber optic communication the LED was employed as a light source. The LED’s mostly operated at the 780 nm or the 850 nm wavelength. This region is referred to as the first

<< Back to Step 4   In Step 5, concept of DWDM, which as we discussed in

<< Back to Step 3   In Step 4, WDM concept, that took off in

<< Back to the Step 1   In previous post, about Step 1, where we discussed dawn