Various particular embodiments include an optical structure, including: a photonic microring including an integral signal detector for detecting a level of an optical signal in the photonic microring; and a controller, coupled to the signal detector, for selectively adjusting a resonant frequency of the photonic microring based on the detected level of the optical signal in the photonic microring.

A digital holographic microscope that includes a light source and a photonic integrated circuit. The photonic integrated circuit can include a branching waveguide optically coupled to the light source, and a multi-angle illumination device optically coupled to the branching waveguide. In various examples, the multi-angle illumination device includes an optical phased array that includes a plurality of light emitters. In various examples, the multi-angle illumination device includes a grating coupler.

A programmable optical chip and a terminal is provided, wherein the optical chip includes: one or more first transmission paths for transmitting an optical signal in the programmable optical chip; first programmable basic devices arranged in an array; and optical IP cores, wherein the optical IP cores and the first programmable basic devices are optically coupled, and the optical IP cores are optically coupled. The optical IP cores include optical soft cores and/or optical firm cores. Each type of optical soft core includes second programmable basic devices and one or more second transmission paths for transmitting the optical signal in the optical soft core. Each type of optical firm core includes third programmable basic devices, one or more third transmission paths for transmitting the optical signal in the optical firm core, and first optical devices used to process the optical signal. In the solution of the present disclosure, operations such as programming are performed on the optical chip such that the optical chip can implement a plurality of different functions.

An optical coupling device is presented. The optical coupling device comprises a plurality of input channels; a plurality of output channels; and a plurality of input coupling arrangements, or a plurality of output coupling arrangements, or a combination of both. Each input coupling arrangement has a coupling channel, and is configured to couple an optical signal propagating through a corresponding input channel into the coupling channel with an adjustable coupling coefficient. Each output coupling arrangement has a coupling channel and is configured to couple an optical signal propagating through the coupling channel into a corresponding output channel with an adjustable coupling coefficient.

An optical computing apparatus includes a plurality of stages including one or a plurality of Mach-Zehnder interference-type optical switches, and, in this optical computing apparatus, incident light is received as input in an incident stage, a phase of the incident light changed in advance by a predetermined phase amount in accordance with a position in the incident stage, and the input light propagates in accordance with a control electric signal.

A non-interferometric thin film lithium niobate electro-optical modulator for data transmission including a laser, configured to generate an input continuous wave light beam; a non-interferometric thin film lithium niobate modulator including an optical waveguide situated along with the coplanar transmission lines and the DC bias conductors. The propagation constant of the optical waveguide is tuned and modulated by the RF data signal and the DC bias voltage traveling on the coplanar transmission lines and the DC bias conductors. The modulator can be tuned at quadrature point by the DC bias voltage. The optical power can be modulated by the RF data signal travelling on the coplanar transmission line; a low noise RF amplifier for data signal amplification; and a bias tee for combining the data signal and DC bias voltage and send them to the coplanar transmission lines.

An optical coupling device is presented. The optical coupling device comprises a plurality of input channels; a plurality of output channels; and a plurality of input coupling arrangements, or a plurality of output coupling arrangements, or a combination of both. Each input coupling arrangement has a coupling channel, and is configured to couple an optical signal propagating through a corresponding input channel into the coupling channel with an adjustable coupling coefficient. Each output coupling arrangement has a coupling channel and is configured to couple an optical signal propagating through the coupling channel into a corresponding output channel with an adjustable coupling coefficient.

An integrated-optics MEMS-actuated beam-steering system is disclosed, wherein the beam-steering system includes a lens and a programmable vertical coupler array having a switching network and an array of vertical couplers, where the switching network can energize of the vertical couplers such that it efficiently emits the light into free-space. The lens collimates the light received from the energized vertical coupler and directs the output beam along a propagation direction determined by the position of the energized vertical coupler within the vertical-coupler array. In some embodiments, the vertical coupler is configured to correct an aberration of the lens. In some embodiments, more than one vertical coupler can be energized to enable steering of multiple output beams. In some embodiments, the switching network is non-blocking.

An electronic device is provided. The electronic device includes a plurality of electronic components, a plurality of first waveguides, and a switch element. The first waveguides are disposed under the electronic components. The switch element is disposed under the electronic components and at an elevation different from the first waveguides, wherein the switch element is configured to optically connect a first one of the first waveguides to a second one of the first waveguides.

An optical circuit for time-binned quantum simulation using boson sampling can be formed with multiple circuit branches that implement different portions of a transfer matrix in parallel, facilitating high-dimensional quantum simulations while achieving low optical loss. In various embodiments, the circuit includes a quantum light source configured to generate a pulse train of time-binned photons having an associated pulse spacing between consecutive pulses, an optical splitter with variable couplers that split the pulse train between the circuit branches; and in each of the branches, one or more optical waveguide loops with optical lengths equal to integers of the pulse spacing, coupled to a main optical waveguide, and a quantum optical detector at the output of the main optical waveguide to measure the output pulse train.