A “cold” InP-based tunneling injection laser withgreatly reduced Auger recombination and temperature dependence

We have measured the Auger recombination rates in an InP-based quantum well tunneling injection laser from large signal modulation experiments. Measured values of the Auger coefficient, C_o=1.2±0.6×10^-29 cm⁶ s^-1 at 283 K, are a factor of over 10² smaller than those measured in similar multiple quantum well separate confinement heterostructure lasers. In effect, the tunneling injection mechanism keeps the carriers “cold” even at high injection levels. A maximum value of T_o=70 K is measured in the tunneling injection laser compared to 50 K for conventional quantum well structures,