Which of the following co-dopant is not employed by neodymium and erbium doped silica fiber lasers?
A)phosphorus pent oxide
B)germania
C)nitrogen
D)alumina

Question

Quizplus · Accepted Answer

Nitrogen is not typically used as a co-dopant in neodymium and erbium doped silica fiber lasers. The common co-dopants are phosphorus pentoxide, germania, and alumina, which help in modifying the core refractive index, improving the solubility of the dopants, and altering the laser properties. Nitrogen, however, is not commonly used for these purposes in such fiber lasers.

Which of the Following Co-Dopant Is Not Employed by Neodymium