Tunable, grating-assisted single-ring laser mirrors

4 pages, 8 figures.-- Contributed to: 2007 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference, Salvador, Brazil, Oct 29-Nov 1, 2007.Two configurations based on Bragg grating assisted single-ring microresonators are analyzed and numerically simulated. Device characteristics such as bandwidth, sensitivity to loss, effect of external coupling and tunability are simulated. The relationship between the resonator mode number and the grating parameters and the selection rules for appropriate mode numbers are discussed. Parametrized reflection characteristics illustrate the analytical results.The support of the Spanish Ministry of Education project CICYT TEC2006-13273-C03-03/MIC and the Natural Sciences and Engineering Research Council of Canada are acknowledged.Publicad