Ultrashort Laser Pulse Phenomena, 2nd Edition

Bibliography 337

of the cavity. Is the latter spectrum identical to the Fourier amplitude

(squared) of the train of pulses? If not, explain the difference(s).

6. Three mode-locked lasers generate pulses of 40 fs duration at the wave-

lengths of 620, 700, and 780 nm, respectively. Find under which condition

the output of these lasers could be combined to provide a train of much

shorter pulses. What are the practical problems to be solved? Assuming

perfect technology, how short would these pulses be?

7. Consider a passively mode-locked dye laser consisting of a saturable

absorber, a depletable amplifier, an output coupler and a bandwidth

limiting element. Following the approach described in Section 5.2.4,

write down the equation for the steady-state pulse ...