Which of the following elements is doped to a | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(C) In an optical fiber communication system, an Erbium-doped fiber amplifier $(EDFA)$ is widely used to amplify optical signals. Erbium $(Er)$ ions a

Vedclass · Accepted Answer

$Er$

Vedclass · Answer

(C) In an optical fiber communication system, an Erbium-doped fiber amplifier $(EDFA)$ is widely used to amplify optical signals. Erbium $(Er)$ ions are doped into the silica fiber core. When these ions are pumped with light at specific wavelengths (typically $980 \ nm$ or $1480 \ nm$), they reach an excited state and provide optical gain through stimulated emission at the $1550 \ nm$ wavelength, which is the low-loss window for optical fibers. Therefore, the correct element is Erbium $(Er)$.

Which of the following elements is doped to a fiber amplifier in an optical fiber communication system?

Similar Questions

If the maximum and minimum amplitudes of a modulated wave are $25 \ V$ and $5 \ V$ respectively,then the modulation index is

The total power content of an $AM$ wave is $900 \, W$. For $100\%$ modulation,the power transmitted by each sideband is......$W$

Frequencies in the $UHF$ range normally propagate by means of:

The process of superimposing a message signal on a high-frequency carrier wave is called:

If the range of a $TV$ telecast is to be doubled,the height of the transmitting antenna must be:

Vedclass Test Series

Exam Paper Generator

Online Exam Module