Squeezing from conventionally pumped lasers; a rate equation approach
Timothy C. Ralph, Craig M. Savage · Quantum Optics Journal of the European Optical Society Part B · 1993
The authors calculate the cavity photon statistics of conventionally pumped four-level lasers using a diagonal number state representation. The results are in agreement with those obtained from previous treatments using linearized Fokker-Planck equations and predict sub-Poissonian photon statistics at sufficiently high pump rates.