Multi-mode fiber can be divided into OM1, OM2, OM3, OM4 and other types according to bandwidth and performance.
● OM1 and OM2: early multimode optical fiber types with a core diameter of 62.5μm, commonly used in short-distance communication and local area network applications. OM2 optical fiber is superior to OM1 optical fiber in performance and has better dispersion performance.
● OM3 and OM4: multi-mode optical fiber types with a core diameter of 50μm, with higher bandwidth and better dispersion performance. OM4 optical fiber is superior to OM3 optical fiber in performance and can support higher-speed data transmission.
● Multimode fiber has a large core diameter: generally 50μm or 62.5μm, allowing multiple modes of optical signals to propagate simultaneously. Multimode optical fiber has a higher transmission loss. Since the optical signal propagates in multiple modes in the core, there is a problem of mode dispersion, resulting in higher transmission loss. The bandwidth of multimode optical fiber is relatively low: compared with single-mode optical fiber, multimode optical fiber has a lower bandwidth and is suitable for lower-speed data transmission.
Multi-mode fiber is suitable for short-distance communication, such as enterprise internal networks, building automation systems and other scenarios. Multimode optical fiber is often used for short-distance connections within data centers, such as connections between servers and storage devices. Multimode optical fiber can also be used to connect audio systems, projectors and other equipment in conference rooms to achieve high-quality audio and video transmission.
