Controllable stretched pulse and dissipative soliton emission using non-linear polarisation rotation and cavity loss tuning mechanism
Document Type
Article
Publication Date
4-1-2013
Abstract
The authors demonstrate a controllable generation of a stretched pulse and dissipative soliton in a normal dispersion erbium-doped fibre laser (EDFL) based on non-linear polarisation rotation technique. It is found that the mode-locking could self-start in the EDFL even without inserting a polariser in the cavity because of the large residual polarisation-dependent loss of a cavity component. By slightly adjusting a polarisation controller, a stretched pulse can be switchable to the dissipative soliton, while maintaining the repetition rate of 2.5 MHz. The stretched pulse has a pulse width of 0.35 ps with energy of 127.6 pJ, whereas the dissipative soliton has a pulse width of 0.60 ps with energy of 208.4 pJ.
Keywords
Controllable stretched pulse, Dissipative soliton emission, Non-linear polarisation rotation, Cavity loss tuning mechanism
Divisions
fac_eng
Publication Title
IET Optoelectronics
Volume
7
Issue
2
Publisher
Institution of Engineering and Technology (IET)