What are the models and specifications of multimode logging optical cables

Multimode optical fibers are classified as OM1, OM2, OM3, OM4, and OM5, each with distinct core sizes, bandwidths, maximum distances, optical sources, and applications.Overview of Multimode Fiber TypesMultimode fiber (MMF) is designed for short- to medium-range data transmission, typically within buildings or data centers. MMF has a larger core diameter (50–62.5 µm) than single-mode fiber, allowing multiple light modes to propagate simultaneously. MMF is cost-effective for enterprise LANs and data center horizontal cabling, using LEDs or VCSELs as optical sources .Multimode Fiber SpecificationsFiber TypeCore Size (µm)Jacket ColorBandwidth (MHz·km)Max 10 GbE DistanceMax 40/100 GbE DistanceOptical SourceTypical ApplicationsOM162.5Orange200 @ 850 nm33 mNot supportedLED100 MbE, legacy LANsOM250Orange500 @ 850 nm82 mNot supportedLED1 GbE, short-range LANsOM350Aqua2000 @ 850 nm300 m100 mLaser-optimized VCSEL10 GbE, 40/100 GbE short linksOM450Aqua4700 @ 850 nm550 m150 mLaser-optimized VCSEL10/40/100 GbE, high-performance data centersOM550Lime Green4700 @ 850 nm, 2470 @ 953 nm550 m150 mLaser-optimized VCSEL, SWDMSupports SWDM 40/100/400 GbE, future-proof data centersKey NotesOM1 and OM2 are legacy fibers, primarily using LED sources, suitable for older 100 MbE and 1 GbE networks. Their orange jacket distinguishes them visually .OM3 and OM4 are laser-optimized 50 µm fibers, designed for VCSELs, supporting higher bandwidth and longer distances. Aqua jackets are standard for these types .OM5 is the newest multimode fiber, supporting Short Wavelength Division Multiplexing (SWDM) across multiple wavelengths (850–953 nm), enabling higher data rates like 40 SWDM4, 100G SWDM4, and 400G-BD4.2. Its lime green jacket identifies it as wideband MMF .Backward compatibility: OM3 and OM4 fibers are compatible with older OM1/OM2 networks for lower-speed applications, but OM1/OM2 cannot support 40/100 GbE standards .Deployment: Most modern data centers and enterprise networks use OM3, OM4, or OM5 for high-speed connectivity, while OM1 and OM2 remain in older infrastructures . This table and overview provide a complete reference for multimode optical cable selection, helping network designers choose the appropriate fiber type based on distance, speed, and application requirements.