Non-classical Analysis of Output Superposed Laser and Signal Twin Light Beams

In this paper, we have shown that the mathematical expressions for a new integrated quantum optical system which encompass laser light and twin light beams. Our finding shows that the quadrature variance and quadrature squeezing for the superposed light beam is the sum of the quadrature variance and the average of the quadrature squeezing of the component systems respectively. We also found that the presence of the twin light beam improves the non-classicality of the system. Keywords： Laser Light, Quadrature Fluctuation, Squeezing, Twin Light Beams