One-sided composite cavity on an optical nanocapillary fiber
arXiv:2508.05072 · doi:10.1364/OL.575690
Abstract
We numerically report a one-sided cavity on an optical nanocapillary fiber (NCF) using a composite cavity. The composite cavity is formed by combining an optical NCF and an asymmetric defect mode grating. We design the cavity to realize the maximum channeling efficiency of up to 80% into one-sided NCF-guided modes while operating from under- to critical- and overcoupling regimes. For the maximum channeling efficiency case, we found the best quality factor, finesse, and one-pass loss of the cavity are 19354, 240, and 1.3%, respectively. The present platform may open a novel route for designing fiber-based deterministic single-photon sources in quantum technologies.
4 pages and 3 figures
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