Title :
Harmonically Mode-Locked Twin-Pulse Dissipative Solitons Yb-Doped Fiber Laser
Author :
Xiaojun Zhu ; Chenxi Bu ; Chinhua Wang ; Ruji Xu ; Guoan Zhang
Author_Institution :
Jiangsu Key Lab. of Adv. Opt. Manuf. Technol., Soochow Univ., Suzhou, China
Abstract :
A harmonically mode-locked (HML) twin-pulse solitons in all-normal-dispersion (ANDi) Yb-doped fiber laser is reported. The mode-locking is based on nonlinear polarization evolution. Using a cascaded long-period fiber grating as the spectral filter, a maximal third HML twin-pulse solitons fiber laser is achieved for the first time in the ANDi system with a pump power of 530 mW. The maximum output energy of a single soliton in each twin-pulse dissipative solitons is 21.73 nJ at the second-harmonic repetition rate of 3.06 MHz and 21.78 nJ at the third-harmonic repetition rate of 4.59 MHz.
Keywords :
diffraction gratings; fibre lasers; laser beams; laser mode locking; optical fibre filters; optical fibre polarisation; optical harmonic generation; optical pulse generation; optical pumping; optical solitons; ytterbium; ANDi system; HML; all-normal-dispersion fiber laser; cascaded long-period fiber grating; energy 21.73 nJ; energy 21.78 nJ; harmonically mode-locked twin-pulse dissipative solitons; mode-locking; nonlinear polarization evolution; output energy; power 530 mW; pump power; second-harmonic repetition rate; spectral filter; third-harmonic repetition rate; Fiber lasers; Laser mode locking; Optical fiber dispersion; Optical fiber polarization; Power harmonic filters; Pump lasers; Solitons; Harmonically mode-locked; all-normal-dispersion; fiber laser; harmonically mode-locked; long-period fiber grating; twin-pulse solitons;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2015.2426792
