Obvious disadvantages are the cost of optical components and the limited potential in terms of available power and conversion efficiency. There may also be a laser safety issue associated with several watts of optical power, which can leave the fiber when it is broken. Typical transmitted powers are some hundreds of milliwatts or a few watts, but there is no principal reason why one should not. Fiber optic transmission has become the cornerstone of high-capacity communication networks, powering residential broadband, hyperscale data centers, 5G, IoT ecosystems, and global long-haul infrastructure. Because the technology is reliable and supports long distances with higher speeds than other connections, fiber optics have revolutionized the. Here are the advantages and disadvantages of fiber optic communication networks. 1) Connection Quality: Fiber optics are resistant to electromagnetic interference and have a low rate of bit error.