For the OM5 version of multimode optical fiber cable, attenuation at which wavelength can be as high as 2.3 dB/km?

The correct answer relates to the specific properties of OM5 multimode fiber optic cables, particularly their performance across various wavelengths. OM5 fiber is designed to operate over a range of wavelengths, especially focusing on the short wavelength division multiplexing (SWDM) applications typically utilized in high-speed data transmission.

At 850 nm, the attenuation is generally low for multimode fibers, making this wavelength suitable for high bandwidth applications. The 1300 nm wavelength is also commonly used for multimode fibers and exhibits comparable low attenuation.

In contrast, the wavelength of 935 nm is particularly relevant for OM5 fibers, as their design optimally supports this wavelength while managing properties like attenuation. The attenuation at 935 nm can indeed reach values as high as 2.3 dB/km due to the inherent material properties of the fiber.

Overall, understanding the attenuation characteristics of different wavelengths is crucial for selecting the appropriate fiber for specific applications in network designs and installations.