Driven degenerate three-level cascade laser

TL;DR

This paper investigates a degenerate three-level cascade laser system coupled to external fields, demonstrating significant squeezing and high photon numbers, indicating potential for generating intense squeezed light.

Contribution

It provides a detailed analysis of squeezing properties and photon numbers in a coupled three-level laser system using stochastic differential equations, highlighting conditions for optimal squeezing.

Findings

Achieves up to 98.3% squeezing under specific conditions

Large mean photon number correlates with better squeezing

System can generate intense squeezed light

Abstract

We analyze a degenerate three-level cascade laser coupled to an external coherent light via one of the coupler mirrors and vacuum reservoir in the other, employing the stochastic differential equation associated with the normal ordering. We study the squeezing properties and also calculate the mean photon number of the cavity radiation. It turns out that the generated light exhibits up to 98.3% squeezing under certain conditions pertaining to the initial preparation of the superposition and the amplitude of the driving radiation. Moreover, the mean photon number is found to be large where there is a better squeezing. Hence it is believed that the system under consideration can generate an intense squeezed light.