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Pump-probe trace of a single surface-QW saturable absorber mirror (excitation wavelength: ). Black dots: measured data. Solid line: double-exponential fit to the data. Inset: scheme of the surface saturable absorber mirror.
Photoluminescence measurements of the three investigated surface-QW SAMs. The exciton resonances are spaced by about with respect to each other (a). Photocurrent measurements of the SCDL gain structure and SAM1 at room temperature (b).
Autocorrelation trace and optical spectrum (inset) of the mode-locked semiconductor disk laser with SAM1.
Radio frequency spectrum (first beat note) of the mode-locked semiconductor disk laser. Inset: scan of the rf spectrum.
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