Fig. 2.

Characterization of the time-lens source. (a) Wavelength tuning range of CH1 of the time-lens source is 1052-1055 nm. (b) Wavelength of CH2 of the time-lens source is 1064.3 nm. (c) Wavelength tuning range of CH3 of the time-lens source is 1040-1050 nm. For (a), (b) and (c), the spectra after the phase modulation are shown. (d–f) Cross-correlation traces between CH1 (1053.7 nm), CH2 (1064.3 nm), and CH3 (1045.5 nm) of the time-lens source and the spectrally unfiltered 100 fs pulse from the mode-locked Ti:Sa laser.