An optical line termination (OLT), also called an optical line terminal, is a device which serves as the service provider endpoint of a. It provides two main functions: 1. to perform conversion between the electrical signals used by the service provider's equipment and the signals used by the passive optical network.
Hollow core fibers (HCF) are innovative optical fibers having the potential to break the limits of conventional optical fibers. Examples of innovation are ultra-low loss potential, ultra-low nonlinearity, resistan.