Which light wavelength propagates farthest in optical fiber?
A)50 nm.
B)850 nm.
C)1550 nm.
D)Both A and B

Question

Quizplus · Accepted Answer

The wavelength of 1550 nm lies in the infrared spectrum and is heavily used in optical fiber communication. This wavelength has the lowest attenuation and can propagate over long distances without much loss, making it the preferred choice for optical fiber networks. The other two wavelengths, 50 nm and 850 nm, are in the visible and near-infrared ranges, respectively, and are not used for long-distance optical fiber communication as they experience high attenuation and dispersion. Therefore, choice C (1550 nm) is the best choice for optical fiber communication.

Which Light Wavelength Propagates Farthest in Optical Fiber