Abstract
A self-similar mode locked fibre laser is studied based on a numericalmodel. By introducing a dimensionless factor k to characterizethe pulse shape, the self-similar pulse evolution, formation and thetemporal and spectral shape changes due to the elements in the cavityare investigated throughout the laser cavity. The results show that inthe self-similar mode locked fibre laser, self-similar pulse is firstformed in the single-mode fibre, which is then amplified in the gainfibre. Gain bandwidth has a small influence on pulse shape, so highenergy self-similar pulse can be obtained after amplification. Becausenet cavity dispersion directly influences the pulse width as well aspeak power after compression by a pair of gratings, which can determinethe pulse self-similar evolution, it is very important to control thenet cavity dispersion to a certain range to obtain self-similar pulses.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
