We investigate generation regimes of dispersion-managed solitons depending on the net cavity dispersion of the all-fiber polarization maintaining laser. Dispersion changes from anomalous region, where shortest pulses are achieved, crossing zero to normal values, where high pulse energy can be reached, provides flexibility of pulse output parameters for different possible applications. One of which is a pump of epitaxial single-photon source where it was tested as an alternative to Ti:Sa laser. The experimental results confirmed identical to Ti:Sa laser efficiency while retaining high purity of the single-photon source.
This work presents for the first time a study of a fibre laser mode-locked due to a carbon-nanotube-based saturable absorber whose parameters could be controlled by a joined action of optical radiation and electric field. Combination of different types of control (optical and electrical) allowed variation of dynamics of the saturable absorber parameters and greater choice of pulsed generation regimes.We demonstrated the possibility of live switching of laser generation between various pulsed regimes through combined electro-optical action on the polymer-free carbon nanotube film.
This work for the first time reports experimental results on Er fibre laser mode-locked with saturable absorbers based on single-walled matrix-less carbon nanotube films fabricated by aerosol method. Nearly transform-limited output pulses had duration of 1.7 ps and average power of 0.5 mW. Measured high-contrast RF output spectra (noise suppression over 70 dB in 1-GHz band) confirm high quality of achieved mode locking. Discussed are details of the aerosol method of matrix-less carbon nanotube film fabrication and parameters of studied mode-locked fibre laser. Application of matrixless carbon nanotube films for mode locking and Q-switching of fibre and other laser types are analysed.
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