B. Sartorius et al., 12-64 GHZ CONTINUOUS FREQUENCY TUNING IN SELF-PULSATING 1.55-MU-M MULTI-QUANTUM-WELL DFB LASERS, IEEE journal of selected topics in quantum electronics, 1(2), 1995, pp. 535-538
Two-section, 1.55-mu m quantum-well DFB lasers, with a very high kappa
of 300/cm, show self-pulsation at a record frequency of 80 GHz. An ex
tremely wide, continuous, electrical frequency tuning range, from 12-6
4 GHz, is achieved. The present self-pulsation mechanism is assigned t
o a beating type oscillation. Locking of this effect to an optically i
njected modulated signal is verified.