A measurement arrangement for measuring the travel time of a laser beam, comprising a laser device configured to emit laser light with a laser wavelength toward the surrounding environment and one or more light detectors configured to absorb inbound laser light after it has been reflected back towards the measurement arrangement. The measurement arrangement also comprises an order-sorting filter configured to transmit laser light only in a first wavelength range, and a scanning Fabry-Pérot interferometer configured to transmit laser light only in a cavity resonance wavelength range. The first wavelength range is broader than the cavity resonance wavelength range, and a control unit is configured to shift the center of the cavity resonance wavelength range when the temperature of the laser device changes.

A LIDAR system includes an emitter head configured to receive LIDAR output signals from one or more LIDAR chips and to output head output signals that each includes light from one of the LIDAR output signals. The emitter head is movable relative to the one or more LIDAR chips. The one or more LIDAR chips are configured to receive LIDAR input signals that each includes light from one of the head output signals. The LIDAR input signals include LIDAR data indicating the distance and/or radial velocity between a LIDAR chip and an object.

A light detection and ranging (LIDAR) pixel includes a splitter, a grating coupler, and a phase shifter. The grating coupler is configured to emit a transmit beam that is based on a combination of a first portion of light and a second portion of light received from a laser. One or more first interconnects and one or more second interconnects couple the splitter to the grating coupler. The phase shifter is coupled to the one or more first interconnects and configured to vary a phase of the first portion of the light relative to a phase of the second portion of the light.

A packaged optical device includes a light source device emitting light to an object surface, a sensor chip receiving reflective light reflected from the object surface, and a non-lens transparency layer located in front of the sensor chip. The light and the reflective light have a first main optic axis and a second main optic axis, respectively, and the first main optic axis and the second main optic axis are configured to form the specular reflection configuration, thereby enhancing images received by the sensor chip. The non-lens transparency layer has a zone passed through by the second main optic axis, and transmittance of the zone is lower than that of other zones of the non-lens transparency layer, thereby preventing the sensor chip from being saturated.

An apparatus is described that includes an image sensor and a light source driver circuit having configuration register space to receive information pertaining to a command to simulate a distance between a light source and an object that is different than an actual distance between the light source and the object.

Systems, methods, and computer-readable media are disclosed for a systems and methods for intra-shot dynamic LIDAR detector gain. One example method my include emitting, by an optical ranging system at a first time, a first light pulse. The example method may also include increasing, after the first time, a sensitivity of a photodetector of the optical ranging system from a first sensitivity at the first time to a second sensitivity at a second time. The example method may also include decreasing the sensitivity of the photodetector of the optical ranging system from the second sensitivity at third time to the first sensitivity at a fourth time, wherein the fourth time is after the photodetector receives return light based on the first light pulse. The example method may also include emitting, by the optical ranging system at the fourth time, a second light pulse.

A measurement device for measuring an optical distance of an object includes an emission device configured to emit a first signal towards the object. The measurement device further includes a modulator device configured to modulate the first signal and a reception device configured to detect a second signal. The measurement device also includes an analysis device configured to receive and analyze the second signal. The measurement device further includes a calibration device configured to calibrate the measurement device with the modulator device turned on and with the emission device operated below a pre-definable power threshold value.

A time-of-flight sensor device generates and analyzes a high-resolution depth map frame from a high-resolution image to determine a mode of operation for the time-of-flight sensor and an illuminator and to control the time-of-flight sensor and illuminator according to the mode of operation. A binned depth map frame can be created from a binned image from the time-of-flight sensor and combined with the high-resolution depth map frame to create a compensated depth map frame.

A detection apparatus includes: a light-emitting element array including plural light-emitting elements; a light-receiving element array including plural light-receiving elements configured to receive reflected light of light emitted from the light-emitting element array to an object to be detected; a drive unit configured to selectively drive the plural light-emitting elements; and a detection unit configured to cause the light-emitting elements to emit light and cause a first light-emitting element corresponding to a first light-receiving element having received light amounts less than a predetermined threshold among received light amounts of light received by all light-receiving elements to emit light to detect the object to be detected.

A light detection and ranging (LIDAR) pixel includes a polarization controller, a grating coupler, and an optical mixer. The polarization controller includes a phase shifter that sets a phase of light in a first arm of the polarization controller and a second arm of the polarization controller.