RP Photonics

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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 30

Assume that we have two identical ultrashort optical pulses, one following the other with a delay of several times the pulse duration. What will be the optical spectrum of that double pulse?

(a) The spectrum is not the same as for the single pulses; it has additional interference fringes.

(b) The spectrum will be the same as for each single pulse, except if the pulses are so close that their wings interfere with each other.

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