Nature Photonics 1, 565–567 (2007)
In this News & Views article, on page 566, column 3, paragraph 1, line 10, the unit for input power was incorrect. The full sentence should have read:
For example, approximately 100 kW of optical power circulates in the cavity when only 1 W input power is injected into the fibre.
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The online version of the original article can be found at 10.1038/nphoton.2007.187
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Loncar, M. Erratum: Cavities lead the way. Nature Photon 2, 76 (2008). https://doi.org/10.1038/nphoton.2008.26
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DOI: https://doi.org/10.1038/nphoton.2008.26
