Single-mode operation of coupled optical systems, such as optical-fiber bundles, lattices of photonic waveguides, or laser arrays, requires an efficient method to suppress unwanted super-modes. Here, we propose a systematic supersymmetry-based approach to selectively eliminate modes of such systems by decreasing their lifetime relative to the lifetime of the mode of interest. The proposed method allows to explore the opto-geometric parameters of the coupled system and to maximize the relative lifetime of a selected mode. We report a 10-fold increase in the relative lifetime of the fundamental modes of large one-dimensional coupled arrays in comparison to simple “head-to-tail” coupling geometries. The ability to select multiple supported modes in one- and two-dimensional arrays is also demonstrated.
© 2018 Optical Society of AmericaFull Article | PDF Article
CorrectionsWiktor Walasik, Bikashkali Midya, Liang Feng, and Natalia M. Litchintser, "Supersymmetry-guided method for mode selection and optimization in coupled systems: publisher’s note," Opt. Lett. 43, 5250-5250 (2018)
3 October 2018: A typographical correction was made to the funding section.
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