Two State Pulsed QW Laser: Turn-on Dynamics

We analyze, experimentally and theoretically, the pulsed generation in quantum well laser simultaneously operating from the ground (GS) and the excited (ES) states. We find that an exponential increase in the output power at the GS laser turn-on noticeably changes its timescale when the laser turns on at the ES wavelength, indicating extremely fast dynamical interaction between the lasing states.