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arXiv · 0803.3760

Remark on laser linewidth hazard in opto-mechanical cooling

Lajos Diósi
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Abstract

I discuss the robustness of the pumped cavity dynamics against phase diffusion of the laser and conclude that opto-mechanical cooling has extreme sensitivity compared to laser cooling of atoms. Certain proposals of ground state opto-mechanical cooling by single cavity would require an unrealistic sharp laser linewidth or equivalently, a very low level of phase noise. A systematic way to cancel classical excess phase noise is the interferometric twin-cavity pumping, initiated for optically trapped macro-mirrors of future gravitational-wave detectors.

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Lajos Diósi. 2008-07-23. Remark on laser linewidth hazard in opto-mechanical cooling. https://doi.org/10.1103/physreva.78.021801

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