Abstract
A thulium-doped all-fiber laser passively mode-locked by the co-action of nonlinear polarization evolution and single-walled carbon nanotubes operating at 1860-1980 nm wavelength band is demonstrated. Pumped with the single-mode laser diode at 1.55 μm laser generates near 500-fs soliton pulses at repetition rate ranging from 6.3 to 72.5 MHz in single-pulse operation regime. Having 3-m long cavity average output power reached 300 mW, giving the peak power of 4.88 kW and the pulse energy of 2.93 nJ with slope efficiency higher than 30%. At a 21.6-m long ring cavity average output power of 117 mW is obtained, corresponding to the pulse energy up to 10.87 nJ and a pulse peak power of 21.7 kW, leading to the higher-order soliton generation.
Original language | English |
---|---|
Article number | 1100908 |
Pages (from-to) | 425-432 |
Number of pages | 8 |
Journal | IEEE Journal of Selected Topics in Quantum Electronics |
Volume | 20 |
Issue number | 5 |
Early online date | 24 Feb 2014 |
DOIs | |
Publication status | Published - 30 Sept 2014 |
Keywords
- carbon nanotube
- fiber lasers
- laser mode locking
- optical pulse shaping