Enhanced damping of laser diode relaxation oscillations from revised rate equations

The standard rate equations are incomplete when the optical cavity conductance depends on the optical frequency at the operating point. Corrected rate equations are given in the paper, that involve an action of frequency back on the amplitude. The number of relaxation oscillations is found to be much smaller than that calculated from standard rate equations when the optical wave is weakly index guided, as in CSP lasers. The revision of the rate equations proposed in the paper may affect most laser characteristics