Is it true that a multimode optical fiber cabling system generally uses VCSELs for transmission rates of 1 Gb/s and above?

A multimode optical fiber cabling system typically utilizes Vertical-Cavity Surface-Emitting Lasers (VCSELs) for transmission rates of 1 Gb/s and above. This is because VCSELs are well-suited for multimode fiber applications, particularly in local-area network (LAN) infrastructures. They are efficient at generating light in the wavelength bands that multimode fibers support, specifically around 850 nm.

The efficiency and lower cost of VCSELs make them a popular choice for high-speed data transmission over short distances, which is common in data centers and office buildings. They enable the transmission of data at gigabit speeds without significant signal loss, making them ideal for high-bandwidth applications.

Understanding the advantages of VCSEL technology in relation to multimode optical fiber systems emphasizes the effectiveness of this fiber type for networking needs, particularly when high data transmission rates are required.