Title :
Passive harmonic mode-locking in all-fibre soliton laser: energy states and stability aspects
Author :
Tzelepis, V. ; Sphicopoulos, Th. ; Caroubalos, C.
Author_Institution :
Dept. of Inf., Athens Univ., Greece
Abstract :
The behavior of a passively mode-locked soliton laser, under different energy states, is studied by using a numerical simulation. The shorter pulse obtainable is determined, pointing out the soliton properties of the output pulses. In the case of harmonic mode-locking, power quantisation related to the number of existing pulses in the cavity, is obtained and repetition rate instability is detected. It is found that by introducing a narrow band optical filter in the cavity and by optimising the filter bandwidth, this instability is substantially reduced.<>
Keywords :
fibre lasers; laser mode locking; laser theory; light polarisation; optical fibres; optical pumping; optical solitons; stability; all-fibre soliton laser; energy states; filter bandwidth optimisation; laser cavity resonators; narrow band optical filter; numerical simulation; output pulses; passive harmonic mode-locking; passively mode-locked soliton laser; power quantisation; repetition rate instability; shorter pulse; soliton properties; stability; Energy states; Laser mode locking; Narrowband; Numerical simulation; Optical filters; Optical pulses; Power harmonic filters; Power system harmonics; Quantization; Solitons;
Journal_Title :
Photonics Technology Letters, IEEE
