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(a) Autocorrelation trace of the harmonically mode-locked semiconductor disk laser. The pulse repetition rate was . (b) Higher-resolution autocorrelation of one pulse. The fit assuming a pulse results in a pulse duration of 198 fs. (c) Optical spectrum centered near 1022 nm. The mode spacing of ≈300 pm corresponds to the pulse rate .
(a) Autocorrelation trace of the semiconductor disk laser in the single-pulse regime. A fit yields a pulse duration of 107 fs. (b) Optical spectrum centered near 1030 nm.
Radio frequency spectrum of the SDL in the single-pulse regime. (a) Wide range spectrum. The fundamental laser frequency is . (b) Vicinity of the fundamental mode.
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