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Widely power tunable polarization independent ultrafast mode locked fiber laser using bulk InN as saturable absorber

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Academic year: 2020

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Figure

Fig.  1.  Characterization  of  a  1-µm-thick  InN  layer:  (a)  Tauc’s  plot,  i.e.  (Eα) 2   vs
Fig. 2. Scheme of the C-band ultrafast mode-locked fiber laser using InN as saturable absorber
Fig. 3. Characterization of the fiber laser described in Fig. 2: (a) Variation of the peak power  (only under pulsed operation, and zero in continuous wave) as a function of the average output  power
Fig. 4. Laser stability for different cavity lengths (from the standard configuration to +200 m of  additional fiber): (a) autocorrelation traces (vertically shifted for clarity), (b) normalized spectra  (vertically shifted for clarity), and (c) repetition
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