Stochastic Model of Sub-Poissonian Quantum Light in an Interband Cascade Laser
Shiyuan Zhao, Frédéric Grillot · Physical Review Applied · 2022
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 considerable amplitude squeezing over a large bandwidth of several GHz. Our results facilitate future midinfrared quantum photonic applications such as free-space secure communications.