We propose a new approach to solve optimization problems using Generalized Lotka-Volterra with global inhibition. Stability criteria ensure the convergences of valid solutions are obtained and the solution is given by the switching time of the network elements. A network of coupled lasers is proposed.
We have fabricated an active add-drop filter (ADF) using an erbium-ytterbium co-doped microsphere resonator and have achieved 25-fold Q-enhancement, 4-fold increase in efficiency and crosstalk of 2%. This ADF provides equal add and drop efficiencies.
We have demonstrated the detection of a 12MHz ultrasound wave using a microtoroidal whispering gallery mode optical resonator, encapsulated in a low-refractive-index polymer with its coupling tapered-fiber. The sensitivity of our device is 35 mV/KPa.
We encapsulate a high-quality factor optical whispering gallery mode (WGM) microtoroid resonator together with its side coupled fiber taper inside a low refractive index polymer, achieving a final higher than . Packaging provides stable resonator-fiber taper coupling, long-term maintenance of high- , a protective layer against contaminants, and portability to microtoroid resonator based...
We have fabricated an Add-Drop filter using an Erbium-Ytterbium co-doped microsphere resonator side-coupled to two tapered fibers. By optically pumping this active resonator below its lasing threshold, we have demonstrated bandwidth reduction, drop-efficiency increase and crosstalk suppression.
We demonstrate that a whispering gallery mode (WGM) microtoroidal optical resonator retains its high quality factor Q > 107 when encapsulated into a low index polymer matrix. We tested the packaged system in water with various salt concentrations and temperatures, and in air under various room conditions, showing that the polymer package keeps the resonator intact from degrading effects of environment,...
We present an add-drop filter (ADF) with a drop efficiency of 57% and quality factor of 4.5 × 106 composed of an on-chip whispering gallery mode (WGM) ultra-high quality factor (Q) microtoroid resonator side coupled to two taper fibers. Different than the exisiting microtoroid based ADF designs, we fabricated reflowed silica side walls along the microtoroid resonators to support the fiber-taper waveguides,...
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