OM3 pigtails and OM2 optical fibers

OM3 and OM2 are multimode optical fibers with different core sizes and bandwidth capabilities, and pigtails are used to connect these fibers to network equipment efficiently.

OM2 Optical Fiber

OM2 fiber is a multimode fiber standardized in 1998 with a 50 µm core diameter and an orange jacket . It typically uses LED light sources and is suitable for 1G Ethernet up to 550 meters, with 10G Ethernet limited to around 33 meters . OM2 fibers are often used in older network infrastructures or short-distance interconnections within buildings. They provide moderate bandwidth and are compatible with standard multimode connectors like ST, SC, FC, and LC .

OM3 Optical Fiber

OM3 fiber is a laser-optimized multimode fiber standardized in 2003, designed for high-speed applications such as 10G Ethernet over longer distances compared to OM2 . It has a 50 µm core like OM2 but is optimized for 850 nm VCSEL lasers, offering higher modal bandwidth and better performance in data centers and enterprise networks . OM3 fibers typically have a aqua-colored jacket to distinguish them from OM2 and OM1 fibers .

Fiber Pigtails

Fiber pigtails are short lengths of optical fiber with a pre-terminated connector on one end, used to transition from distribution cables to equipment or cross-connect points . They simplify installation and maintenance by allowing fusion or mechanical splicing to the main fiber cable. Pigtails are available for OM2, OM3, and other multimode fibers, and come in various connector types (ST, SC, FC, LC) and buffer sizes (typically 900 µm for multimode) to match the network requirements .

Key Differences Between OM2 and OM3

Summary

OM2 fibers are suitable for legacy or short-distance multimode networks, while OM3 fibers are optimized for high-speed, laser-based applications. Pigtails for both fiber types allow easy connection to equipment and cross-connects, ensuring reliable network performance and simplified installation .