Question

Which wavelength is used on 10GBASE-LW (Long Wavelength) fiber-optic cabling?

A) 850 nm

B) 1310 nm

C) 1550 nm

D) 10,000 nm

Answer 1

The wavelength used on 10GBASE-LW fiber-optic cabling is 1310 nm, which is suitable for long-distance network transmission.

Step-by-step explanation:

The wavelength used on 10GBASE-LW (Long Wavelength) fiber-optic cabling is 1310 nm. This standard operates using a longer wavelength in the infrared spectrum, providing good transmission distance suited for long-haul networks. In contrast, shorter wavelengths, such as 850 nm, are typically used for shorter distances in fiber-optic communications. By using the long wavelength of 1310 nm, 10GBASE-LW ensures lower fiber attenuation and is less affected by modal dispersion over long distances.