उच्च गुणवत्ता वाले फाइबर ऑप्टिक केबलों के निर्माण के लिए उपयोग की जाने वाली प्राथमिक सामग्री क्या है?

Which of the following is commonly used as a light source for optical fiber transmission?

Which of the following components is used as a receiver in fiber optic communication?

In optical communication, if the energy of a single photon is 1 J and there are 1000 photons, compute the total energy.

In an optical receiver, the PIN photodiode has a ________ intrinsic semiconductor layer separating P and N regions, and the diode is typically ______ biased to help draw the current carriers rapidly away from the intrinsic region.

Which of the following expressions correctly defines the quantum efficiency (η) of a photodetector? (Where Iph = average photocurrent, Po = average incident optical power, e = electron charge, and hc/λ = incident photon energy)