We demonstrate robust single-transverse-mode light propagation in higher-order modes of a fiber, with effective area ranging from 2100 to . These modes are accessed using long-period fiber gratings that enable higher-order-mode excitation over a bandwidth of with greater than 99% of the light in the desired mode. The fiber is designed such that the effective index separation between modes is always large, hence minimizing in-fiber mode mixing and enabling light propagation over lengths as large as , with bends down to radii. The modal stability increases with mode order, suggesting that of this platform is substantially scalable.
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