Lecture 55 The Mysterious dB of Fiber Optics

Fiber optic measurements of power and loss are made in dB, a mysterious unit of measurement that confuses many people. This video explains what dB and dBm are, how they are defined and measured. The lecture also explains how small change in a standard created confusion and misunderstanding of dB. Even if you aren't a math whiz, this FOA lecture can help you understand dB.