Paper
24 May 1999 Intracavity Rayleigh scattering in microspheres: limits imposed on quality factor and mode coupling
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Abstract
We present a detailed analysis of the effect of volumetric and surface inhomogeneities as a source of quality-factor limitation and intracavity resonant backscattering in optical microsphere cavities of fused silica. Intrinsic scattering in microspheres is shown to be significantly inhibited as compared to standard Rayleigh scattering in the bulk material. This reassessment of fundamental losses indicates that Q-factors substantially exceeding the previously expected limit of approximately 1011 can be obtained in microspheres, as soon as surface hydration is prevented. The intracavity backscattering is analyzed as a source of whispering-gallery mode splitting and resonant optical feedback in presence of a mode-matched travelling- wave coupler.
© (1999) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Mikhail L. Gorodetsky, Vladimir S. Ilchenko, and Andrew D. Pryamikov "Intracavity Rayleigh scattering in microspheres: limits imposed on quality factor and mode coupling", Proc. SPIE 3611, Laser Resonators II, (24 May 1999); https://doi.org/10.1117/12.349278
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KEYWORDS
Scattering

Rayleigh scattering

Silica

Backscatter

Laser scattering

Optical spheres

Signal attenuation

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