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The Photonics Quiz

Test yourself by solving a set of questions concerning laser technology, optical fibers, and nonlinear optics! The following questions are mostly solvable by using the Encyclopedia of Laser Physics and Technology. Note that in some cases more than one answer is correct.

Question 28

Erbium-doped fiber amplifiers are

(a) the most efficient fiber amplifiers, disregarding only some devices based on prohibitively expensive types of fibers

(b) the type of fiber amplifier offering the lowest noise figure

(c) operating in the wavelength region where standard single-mode fibers have lowest losses

(d) suitable for transparent optical networks, since they simply transmit any input signals when not being pumped

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