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Proceedings Paper

Extremely-narrow tunable all-optical interferometric bandpass filter
Author(s): Otto Schwelb; Istvan Frigyes
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Paper 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.

Paper Details

Date Published: 15 December 2000
PDF: 10 pages
Proc. SPIE 4087, Applications of Photonic Technology 4, (15 December 2000); doi: 10.1117/12.406397
Show Author Affiliations
Otto Schwelb, Concordia Univ. (Canada)
Istvan Frigyes, Technical Univ. of Budapest (Hungary)

Published in SPIE Proceedings Vol. 4087:
Applications of Photonic Technology 4
Roger A. Lessard; George A. Lampropoulos, Editor(s)

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