A breakthrough in superconducting quantum computers could make them more scalable by using fiber optics instead of bulky electrical systems. com Quantum computing takes a leap. How Optical Fiber Enhances Quantum Communication Quantum communication is a revolutionary approach to data transmission, offering unparalleled security and speed by leveraging the principles of quantum mechanics. The key to making quantum communication feasible on a large scale lies in the use of. Fiber port clusters are compact opto-mechanical units that split the radiation from one or more polariza-tion-maintaining (PM) fibers into mul-tiple output polarization-maintaining fiber cables with high efficiency and a variable splitting ratio.