Extremely-narrow tunable all-optical interferometric bandpass filter

Otto Schwelb; Istvan Frigyes

doi:10.1117/12.406397

15 December 2000 Extremely narrow tunable all-optical interferometric bandpass filter

Otto Schwelb, Istvan Frigyes

Proceedings Volume 4087, Applications of Photonic Technology 4; (2000) https://doi.org/10.1117/12.406397
Event: 2000 International Conference on Application of Photonic Technology (ICAPT 2000), 2000, Quebec City, Canada

Abstract

Numerically simulated performance of a new type of bandpass filter, based on discontinuity-assisted ring resonator (DARR) loaded couplers is presented. The operating characteristics of the device are similar to those of a long grating with a centered cavity or a photonic crystal with a defect. The filter is tuned by varying the length or the refractive index of the cavity. Selectivity and tuning range is controlled by the coupling coefficient of the couplers and by the reflection coefficient of the discontinuities. A design procedure and the effect of loss are also presented.

Citation Download Citation

Otto Schwelb and Istvan Frigyes "Extremely narrow tunable all-optical interferometric bandpass filter", Proc. SPIE 4087, Applications of Photonic Technology 4, (15 December 2000); https://doi.org/10.1117/12.406397

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