Spectrally resolved streak camera measurements of picosecond pulses em
itted by hybridly colliding pulse mode-locked (CPM) laser diodes are p
resented in this letter. Depending on the modulation frequency both bl
ue-chirped (upchirped) and red-chirped (downchirped) pulses can be obs
erved. The two different regimes and the transition between them are c
haracterized experimentally and the behavior is explained on the basis
of our model for the CPM laser dynamics. (C) 1997 American Institute
of Physics.