A Bragg-reflection-based ring resonator is proposed and analyzed. Closed-form expressions for the field and dispersion curves for radial Bragg gratings and photonic bandgap crystals are derived. The required gratings exhibit a chirped period and a varying index profile. Small bending radii and strong control over the resonator dispersion are possible by the Bragg confinement. Large free spectral range and low radiation loss are predicted theoretically. (C) 2003 Optical Society of America.
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页码:1528 / 1530
页数:3
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[Anonymous], 1999, OPTICAL FILTER DESIG, DOI DOI 10.1002/0471213756