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arXiv · 0809.2349

Excess quantum noise due to mode nonorthogonality in dielectric microresonators

Henning Schomerus
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Abstract

This work presents a theory of the frequency-resolved light emission of active two-dimensional dielectric microresonators, which are characterized by a highly non-paraxial mode structure and frequently feature a position-dependent dielectric constant and non-uniform gain. The Lorentzian intensity profile is characterized by an appropriately generalized Petermann factor, a renormalized peak position, and the cold-cavity resonance lifetime Gamma. The theory also delivers a relation of Gamma to the laser threshold that improves earlier phenomenological expressions even for the case of a homogeneous medium.

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Henning Schomerus. 2009-06-16. Excess quantum noise due to mode nonorthogonality in dielectric microresonators. https://doi.org/10.1103/physreva.79.061801

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