Fiber optic cables have several disadvantages, including high installation costs, signal degradation over long distances, and the need for specialized equipment and training for installation and maintenance. A fiber optic cable is formed by drawing glass or a special sort of plastic, which can transmit light from one end of the fiber to a special end. Even though fiber-optic internet service is a relatively new option for homes and businesses in the US, the technology powering it isn't new at all. The dark side of fiber optics: Are there any risks associated with its use? Fiber optic Fiber optic is a communications. There are many advantages but there are some disadvantages also, so we are going to look at the fiber optic cable advantages and disadvantages. As our digital needs continue to grow, fiber optic technology stands at the forefront, providing the capacity and efficiency required to support our. Here are the advantages and disadvantages of fiber optic communication networks. The technology impresses with its enormous speeds, high reliability, and strong environmental credentials.