Squeezing properties of nondegenerate three-level laser with degenerate parametric amplifier

We study the squeezing properties of light generated by nondegenerate three-level laser in which atoms are cascade configuration with degenerate parametric oscillator. obtain c-number Langevin equations associated normal ordering using pertinent master equation. Making use solutions equations, we calculate quadrature variances. The results show that two-mode produced system under consideration is squeezed state and occurs minus quadrature. degree increase linear gain coefficient almost perfect can be obtained for large values initially prepared lower level slightly greater than upper level. Moreover, presence nonlinear crystal increases single mode lights. Â