50-Medium Multimode Fiber

50-micron multimode fiber (50/125 µm) is a type of optical fiber optimized for short- to medium-distance high-speed data transmission, commonly used in LANs, data centers, and enterprise networks.Overview50-micron multimode fiber has a core diameter of 50 µm and a cladding diameter of 125 µm, allowing multiple light modes to propagate simultaneously. This design simplifies alignment, reduces equipment cost, and supports high data rates over short distances, typically up to 550 meters depending on the fiber type and Ethernet speed . It is compatible with LEDs and VCSELs operating at 850 nm and 1300 nm wavelengths .Fiber Types and PerformanceThe 50-micron multimode fiber is available in several standardized types:OM2: 50 µm core, LED-optimized, supports 1 Gbps Ethernet up to 550 meters and 10 Gbps up to 82 meters .OM3: Laser-optimized, 50 µm core, supports 10 Gbps Ethernet up to 300 meters, 40/100 Gbps up to 100 meters, with a modal bandwidth of 2000 MHz·km at 850 nm .OM4: Enhanced laser-optimized, 50 µm core, supports 10 Gbps Ethernet up to 400 meters, 40/100 Gbps up to 150 meters, with a modal bandwidth of 4700 MHz·km .OM5: Wideband multimode fiber, 50 µm core, designed for shortwave wavelength division multiplexing (SWDM), supporting higher data rates and longer distances for modern high-speed networks .Applications50-micron multimode fiber is widely used in:Data centers and enterprise LANs for 10G, 40G, and 100G Ethernet connections .SAN (Storage Area Networks) and high-density network cabinets where multiple bends and compact routing are required .Telecommunications and campus networks for short- to medium-distance backbone connections .Specialized applications such as laser welding, fiber optic spectroscopy, and military or defense communications .AdvantagesCost-effective: Uses lower-cost light sources like LEDs and VCSELs .High bandwidth: Supports high-speed Ethernet and data rates up to 100 Gbps over short distances .Bend-insensitive: Modern OM3/OM4 fibers are less sensitive to bending, reducing signal loss in tight installations .Ease of installation: Larger core diameter simplifies alignment and connectorization .Summary50-micron multimode fiber is ideal for short- to medium-range high-speed networking, offering a balance between performance, cost, and ease of installation. Choosing the right type (OM2–OM5) depends on the required data rate, distance, and network infrastructure. For example, OM3 or OM4 is preferred for 10G–100G Ethernet in data centers, while OM2 may suffice for 1G–10G connections over shorter distances.