What is the overfilled launch (OFL) bandwidth of an OM4 multimode fiber at 850 nm?

The overfilled launch (OFL) bandwidth of an OM4 multimode fiber at 850 nm is indeed 3500 MHz-km. This value is significant because it reflects the fiber's ability to handle a broader range of bandwidth over distance, which is essential in high-speed data transmission applications.

OM4 multimode fiber is designed to support higher bandwidths and longer distances than earlier standards like OM3, making it suitable for applications in data centers and other environments where high data rates are required. The 3500 MHz-km rating at 850 nm means that the fiber can transmit data at a high capacity over a 1-kilometer distance while maintaining performance standards.

This high bandwidth capacity is critical for modern networking needs, especially with the increasing demand for data throughput in applications such as cloud computing, video streaming, and other bandwidth-intensive tasks. The specification helps engineers and system designers in selecting the appropriate fiber type for their specific requirements, ensuring optimal performance and future-proofing their infrastructure.