EMISSION DYNAMICS OF A MULTIFUNCTIONAL 3- SECTION HETEROLASER

An investigation was made of the following dynamic operational regimes of three-section laser diodes based on (GaAl)As heterostructures with different connection configurations and different control signals: di rect modulation of the current in the superluminescence regime and las ing under uniform injection conditions; self-modulation of the intensi ty (including hysteretic self-modulation bistability and chaotic spiki ng) and synchronisation of such modulation by a harmonic current signa l; generation of picosecond optical pulses under the conditions of Q s witching and mode locking in external cavities; tuning of the emission wavelength. The investigated lasers were constructed to ensure good c ontact with single-mode fibre waveguides.