A fiber pigtail is a short optical fiber cable with a connector pre-installed on one end and a bare fiber on the other. It acts as a bridge between optical fibers and devices, making it a vital part of network termination, splicing, and patching processes. The connector end is polished and tested under factory conditions, ensuring low insertion loss and high return loss. The other side of the pigtail is open and is connected to a fiber optic cable. In such contemporary fiber optic communication systems, low-loss, and connectivities, which have reliability, are crucial for not only maintaining high-speed but also high-quality data transmission.