INFLUENCE OF DRIVING CIRCUIT IMPEDANCE ON QUANTUM-NOISE IN SEMICONDUCTOR MICROLASERS

It is well known that quiet current pumping in semiconductor lasers ca n give rise to good noise characteristics. This is achieved by use of a driving circuit with a high internal impedance. An analysis of the a mplitude noise behavior that occurs with varying the source resistance is carried out. In particular, it is pointed out that the driving res istance also affects the optical noise sources in a region of injectio n current that is not too Far above threshold. Numerical results are p resented for a post microcavity laser device. (C) 1998 Optical Society of America [S0740-3224(98)01605-1].