MODULATION RESPONSE OF TUNNELING INJECTION-LASER - ANALYTICAL APPROACH

The modulation response of a tunneling injection laser has been studie d by an analytic solution of the rate equations taking into account ca rrier transport effects. The formula for K factor has been derived. We have found that the modulation bandwidth increases when coupling betw een quantum well and separate confinement increases and that the value of K factor is underestimated in a tunneling injection laser. It indi cates that the observed high modulation bandwidth in tunneling injecti on laser is mostly due to reduction of hot carrier effects. (C) 1998 A merican Institute of Physics. [S0021-8979(98)05122-6].