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Single-walled carbon nanotubes (SWCNTs) are being widely investigated as saturable absorbers for initiating and maintaining mode-locking. All mode-locked fibre laser systems based on SWCNT saturable absorbers, demonstrated to date, have used the first electronic transition of the nanotubes, known as E11, which corresponds to the single real gap in the electron density of states (DOS) of semiconducting...
We demonstrate strongly chirped pulses from mode-locked Yb fibre ring lasers with cavity lengths exceeding 1 km, in the presence of very high net normal dispersion. Mode-locking was achieved using a single wall carbon nanotube saturable absorber. In the experiments reported here, no intentional spectral filtering was employed, despite the all-normally dispersive cavity. The lasing wavelength selection...
A titanium-doped sapphire laser has been modelocked using an intracavity multiquantum well absorber. Stable transform-limited pulses as short as 130 fs have been generated.<<ETX>>
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