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arXiv · 2010.14216

Coupling Light to Higher Order Transverse Modes of a Near-Concentric Optical Cavity

Adrian Nugraha Utama·Chang Hoong Chow·Chi Huan Nguyen·Christian Kurtsiefer
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Abstract

Optical cavities in the near-concentric regime have near-degenerate transverse modes; the tight focusing transverse modes in this regime enable strong coupling with atoms. These features provide an interesting platform to explore multi-mode interaction between atoms and light. Here, we use a spatial light modulator (SLM) to shape the phase of an incoming light beam to match several Laguerre-Gaussian (LG) modes of a near-concentric optical cavity. We demonstrate coupling efficiency close to the theoretical prediction for single LG modes and well-defined combinations of them, limited mainly by imperfections in the cavity alignment.

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Adrian Nugraha Utama, Chang Hoong Chow, Chi Huan Nguyen, Christian Kurtsiefer. 2020-10-27. Coupling Light to Higher Order Transverse Modes of a Near-Concentric Optical Cavity. https://doi.org/10.1364/oe.413737

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