Abstract: The present invention applies to resonant optical power control device assemblies and methods relating thereto, and includes an alignment device preferably including one or more waveguide-alignment grooves, resonator alignment grooves, and alignment groves for a second optical element including a modulator. One embodiment includes a transmission optical waveguide, a circumferential-mode optical resonator; and a second optical element, optionally including one or more of an optical modulator or a second transmission optical waveguide, and optionally including a modulator optical control element. In this embodiment, the alignment grooves reliably establish and stably maintain evanescent optical coupling between the optical elements positioned in such grooves. A method for assembling a resonant optical power control devices is also disclosed.

Abstract: A channel-obtaining device takes the desired channel and uses a resonant semiconductor device to mix the channel to a different frequency. The dropped channel is sufficiently removed from the other channels in frequency that it can be effectively separated.

Abstract: All-optical logic gates in which binary words are encoded using wavelength. A method and apparatus for processing information in this wavelength encoded format is provided. The processing may occur entirely in the optical domain. This approach is modular and enables construction of logic gates using custom wave guide chips that can be mass-produced in a manner similar to that of conventional electronic digital chips. Specific gates, such as AND, OR, EXOR, or NAND, may be "programmed" into a given chip during its fabrication to encode the desired truth table. The output states of the chip are determined by ultrafast mixing of binary encoded wavelengths in a semiconductor optical amplifier. The result is a new wavelength having a relationship to the input wavelengths determined entirely by the desired truth table. The possible clock-rates for these gates can be exceedingly high, such as several hundred Gigabits/second.