Open AccessPerformance manipulation of the squeezed coherent light source based on four-wave mixing
Author(s) -
Li Jin
Publication year - 2021
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.435735
Subject(s) - four wave mixing , lasing threshold , optics , mixing (physics) , physics , noise (video) , metrology , laser , quantum metrology , laser linewidth , nonlinear optics , quantum , quantum information , quantum mechanics , quantum network , computer science , artificial intelligence , image (mathematics)
We present performance manipulation of the squeezed coherent light source based on four-wave mixing (FWM) in alkaline-earth atoms. We investigate the dynamic response of the system and the spectroscopic feature of lasing generated by resonantly enhanced wave-mixing in coherently prepared system. In this method, the spectral purity and stability of the wave-mixing lasing can be manipulated at will by choosing optimal laser parameters. We also analyze the effect of Langevin noise fluctuations on the system and the relative-intensity noise spectrum of the wave-mixing lasing is well below the standard quantum limit (down to -4.7 dB). This work opens new possibilities for alternative routes to laser stabilization and provides a promising path to realize precision metrology.