Two-mode light in optomechanical cavity with squeezed vacuum reservoir

• Published in: Scientific Reports
• Main Authors: Edris Salih, Misrak Getahun
• Format: Article
• Language: English
• Published: Nature Portfolio 2025-02-01
• Subjects: Optomechanical cavity; Quadrature squeezing; Non-degenerate parametric oscillators; Three-level laser
• Online Access: https://doi.org/10.1038/s41598-025-88382-w
• ISSN: 2045-2322

Abstract We consider a two-mode light generated by nondegenerate three-level laser with parametric oscillator in optomechanical cavity coupled to two-mode squeezed vacuum reservoir. Effects of pump mode, optomechanical coupling strength and squeezed vacuum reservoir on squeezing and entanglement properties of the cavity modes have been analyzed using the expectation values of cavity mode variables at steady state. The results show that the two-mode light produced by the system under consideration exhibits quadrature squeezing and entanglement. The presence of parametric oscillator in the cavity and squeezed vacuum reservoir enhance the degree of squeezing, entanglement and mean photon number of the cavity mode lights. The optomechanical cavity has no effect on the mean photon number and entanglement of the cavity mode but increases the degree of quadrature squeezing.