Abstract: Disclosed herein is a chip-based optical beam director, the beam director including: an input to receive light of a range of different wavelengths, including a light of a first wavelength channel and a light of a second wavelength channel, different to the first wavelength channel; an output to emit directed light from the optical beam director; a dielectric layer on an insulator; and at least one set of multiple subwavelength structures formed in the dielectric layer in a light path from the input to the output, each set of the multiple subwavelength structures having a periodic arrangement or semi-periodic arrangement, the periodic or semi-periodic arrangement causing the first wavelength channel to be dispersed in a first direction within the light path and the second wavelength channel to be dispersed in a second direction within the light path, different to the first direction.

Abstract: In one arrangement, a system includes a light source to provide outgoing light having at least one time-varying attribute at a selected one of multiple wavelength channels, the at least one time-varying attribute including either/both of (a) a time-varying intensity profile and (b) a time-varying frequency deviation, a beam director to spatially direct the outgoing light into one of multiple directions in two dimensions into an environment having a spatial profile, the one of the multiple directions corresponding to the selected wavelength channel, a light receiver to receive at least part of the outgoing light reflected by the environment, and a processing unit to determine at least one characteristic associated with the at least one time-varying attribute of the reflected light at the selected one of the multiple wavelengths for estimation of the spatial profile of the environment associated with the corresponding one of the multiple directions.

Abstract: Various forms of optical circulator are disclosed. The optical circulators act on polarisation of the light to direct light between its ports. Also disclosed are systems and methods for facilitating estimation of a spatial profile of an environment based on a light detection and ranging (LiDAR) based technique. The systems and method may include or use one or more of the various forms of optical circulator. In one arrangement, the present disclosure facilitates spatial profile estimation based on directing light over one dimension, such as along the vertical direction. In another arrangement, by further directing the one-dimensionally directed light in another dimension, such as along the horizontal direction, the present disclosure facilitates spatial profile estimation based on directing light in two dimensions.

Abstract: In one arrangement, a system includes a light source to provide outgoing light having at least one time-varying attribute at a selected one of multiple wavelength channels, the at least one time-varying attribute including either/both of (a) a time-varying intensity profile and (b) a time-varying frequency deviation, a beam director to spatially direct the outgoing light into one of multiple directions in two dimensions into an environment having a spatial profile, the one of the multiple directions corresponding to the selected wavelength channel, a light receiver to receive at least part of the outgoing light reflected by the environment, and a processing unit to determine at least one characteristic associated with the at least one time-varying attribute of the reflected light at the selected one of the multiple wavelengths for estimation of the spatial profile of the environment associated with the corresponding one of the multiple directions.

Abstract: Described herein is a system, a method and a processor-readable medium for spatial profiling.

Abstract: Described herein is a system, a method and a processor-readable medium for spatial profiling.

Abstract: Described herein is a system for directing light over two dimensions. The system includes a dispersive element arranged to direct light over an initial dimension based on wavelength. The system also includes an array of steering elements arranged along the initial dimension to receive the directed light, the array of steering elements configured to further direct the received light to whereby direction of the light over two dimensions is achieved. Also described is a method for directing light over two dimensions.

Abstract: Described herein is a system, a method and a processor-readable medium for spatial profiling.

Abstract: Described herein is a system, a method and a processor-readable medium for spatial profiling.

Abstract: Described herein is a system, a method and a processor-readable medium for spatial profiling.