Abstract
Nonlinear optical frequency conversion can result in redistribution of the noise of the coherent pump light among generated optical harmonics leading to improved quality of laser emission. The property is useful for making narrow line lasers suitable for various metrology applications on a chip. We show theoretically that the resonant hyperparametric scattering allows reducing optical frequency noise in one of the generated harmonics with respect to the coherent pump light. The reduction calls for significantly dissimilar quality factors of the resonator modes and appears at the cost of enhanced frequency sensitivity to power fluctuations of the pump light. The artificial suppression of the quality factor of one of the modes participating in the scattering does not lead to significant increase of the oscillation threshold and broadens the dynamic range of the phase matching of the process. The technique is promising for creation of chip-scale parametric frequency “noise eaters.”
2 More- Received 19 November 2018
- Revised 21 January 2019
DOI:https://doi.org/10.1103/PhysRevA.99.023843
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