Poor Fiber Cleave: Angled or chipped cleaves prevent proper core alignment. Dirty Fibers: Dust, oil, and residue reduce splice quality. Misalignment: Incorrect positioning of fibers leads to light leakage. Core vs Cladding Mismatch: Using different fiber types without adjustment. Fiber optic pigtails are used to connect fiber optic cables using fusion or mechanical splicing. What is a mechanical splice? What is a fusion splice? Why splice? Fiber splicing is one way to join two optical fibers together so the light energy from one optical fiber can be transferred to another. A single imperfect splice can disrupt connectivity for businesses, schools, and homes, causing slow speeds, intermittent outages, and costly downtime. It fuses the end faces of two optical fibers into a single piece by melting them together, enabling optical signal transmission. Ensure they are clean using alcohol wipes or specialized fibre. The quality of a fusion splice can be defined by both optical characteristics, such as insertion loss or reflectance, and mechanical characteristics, such as failure strength or long term reliability. While some loss is unavoidable, excessive loss can compromise network performance.