Abstract: A photonic chip having a photonic-circuit layer supported on a substrate, the photonic-circuit layer including a suspended portion that extends beyond the outline of the substrate on the photonic-circuit layer. In various embodiments, the suspended portion may host one or more functional optical elements, such as an on-chip grating coupler, an on-chip microring resonator, and an on chip optical waveguide, that can be used to couple light in and out of the photonic chip. The geometry of the suspended portion enables unencumbered (e.g., double-sided) access to the one or more functional optical elements located therein and can advantageously be used to place an optical fiber and/or a second photonic chip sufficiently close to those functional optical elements to achieve a high chip-to-fiber or chip-to-chip optical-coupling efficiency.

Abstract: A photonic chip having a photonic-circuit layer supported on a substrate, the photonic-circuit layer including a suspended portion that extends beyond the outline of the substrate on the photonic-circuit layer. In various embodiments, the suspended portion may host one or more functional optical elements, such as an on-chip grating coupler, an on-chip microring resonator, and an on chip optical waveguide, that can be used to couple light in and out of the photonic chip. The geometry of the suspended portion enables unencumbered (e.g., double-sided) access to the one or more functional optical elements located therein and can advantageously be used to place an optical fiber and/or a second photonic chip sufficiently close to those functional optical elements to achieve a high chip-to-fiber or chip-to-chip optical-coupling efficiency.

Abstract: A device includes a storage unit, a processor and an output unit. The storage unit is configured to store identification information and a plurality of temporary contact data items. The processor is configured to select one of the temporary contact data items based on the identification information and a first time index. The output unit is configured to output the selected temporary contact data item. The selected contact data item may include at least one of, e.g. a temporary telephone number, a temporary email address, a temporary IP address, and a temporary uniform resource identifier (URI).