Stochastic Model of Sub-Poissonian Quantum Light in an Interband Cascade Laser

This work theoretically investigates the possibility of generating amplitude-squeezed light with high -quantum-efficiency interband cascade lasers. Based on a stochastic approach, we show that, by employing the suppressed-pump-noise configuration, this kind of midinfrared source enables operation with consider-able amplitude squeezing over a large bandwidth of several GHz. Our results facilitate future midinfrared quantum photonic applications such as free-space secure communications.

Automated summary

This paper theoretically investigates the possibility of generating amplitude-squeezed light with high-quantum-efficiency interband cascade lasers, and shows that it can achieve considerable amplitude squeezing over a large bandwidth. The results have important implications for midinfrared quantum photonic applications.