Photonic integrated circuits with bound states in the continuum
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AbstractWaves that are perfectly confined in the continuous spectrum of radiating waves without interaction with them are known as bound states in the continuum (BICs). Despite recent discoveries of BICs in nanophotonics, full routing and control of BICs have not yet been explored. Here, we experimentally demonstrate BICs in a fundamentally new photonic architecture by patterning a low-refractive-index material on a high-refractive-index substrate, where dissipation to the substrate continuum is eliminated by engineering the geometric parameters. Pivotal BIC-based photonic components are demonstrated, including waveguides, microcavities, directional couplers, and modulators. Therefore, this work presents the critical step of photonic integrated circuits with BICs, and enables the exploration of new single-crystal materials on an integrated photonic platform without the fabrication challenges of patterning the single-crystal materials. The demonstrated lithium niobate platform will facilitate development of functional photonic integrated circuits for optical communications, nonlinear optics at the single photon level, as well as scalable photonic quantum information processors.
All Author(s) ListYu ZJ, Xi X, Ma JW, Tsang HK, Zou CL, Sun XK
Journal nameOptica
Year2019
Month10
Day20
Volume Number6
Issue Number10
PublisherOPTICAL SOC AMER
Pages1342 - 1348
ISSN2334-2536
LanguagesEnglish-United Kingdom
KeywordsIntegrated Optics
Web of Science Subject CategoriesOptics;Optics

Last updated on 2021-26-02 at 23:38