An Optical Front-end, OFE, for Optical Wireless Communication, OWC, the OFE comprising: - an optical receiver with at least a photodetector, the at least one photodetector facing in a detection direction, and a Trans-Impedance Amplifier, TIA, for amplifying the signal from the at least one photodetector, and - a two-dimensional array of optical transmitters each having an individual transmitter field-of-view, and corresponding drivers, the two-dimensional array arranged to create a combined transmitter field of view that is larger than the individual transmitter field of view, and where the number of optical transmitters along a first direction is larger than the number of optical transmitters along a second direction and the combined transmitter field of view in the first direction is larger than in the second direction, the first direction orthogonal to the second direction, the optical transmitters arranged such that optical axes of the optical transmitters are evenly distributed within the combined transmitter field of view, wherein the optical receiver is mounted on a flat substrate with its optical axis aligned with the optical axis of the combined transmitter field of view and the receiver field of view is larger than, or equal to, the combined transmitter field of view and wherein the optical transmitters are either: - positioned along a surface that is curved around a first axis and curved around a second axis, the first and second axis orthogonal to one another, the first axis perpendicular to the first direction, the second axis perpendicular to the second direction; - positioned with at least one point on a flat surface, each optical transmitter angled to face in a different direction; or - positioned on a flat surface and are fitted with a respective optical wave-guide for directional outcoupling. - an optical receiver with at least a photodetector, the at least one photodetector facing in a detection direction, and a Trans-Impedance Amplifier, TIA, for amplifying the signal from the at least one photodetector, and - a two-dimensional array of optical transmitters each having an individual transmitter field-of-view, and corresponding drivers, the two-dimensional array arranged to create a combined transmitter field of view that is larger than the individual transmitter field of view, and where the number of optical transmitters along a first direction is larger than the number of optical transmitters along a second direction and the combined transmitter field of view in the first direction is larger than in the second direction, the first direction orthogonal to the second direction, the optical transmitters arranged such that optical axes of the optical transmitters are evenly distributed within the combined transmitter field of view, wherein the optical receiver is mounted on a flat substrate with its optical axis aligned with the optical axis of the combined transmitter field of view and the receiver field of view is larger than, or equal to, the combined transmitter field of view and wherein the optical transmitters are either: - positioned along a surface that is curved around a first axis and curved around a second axis, the first and second axis orthogonal to one another, the first axis perpendicular to the first direction, the second axis perpendicular to the second direction; - positioned with at least one point on a flat surface, each optical transmitter angled to face in a different direction; or - positioned on a flat surface and are fitted with a respective optical wave-guide for directional outcoupling. the two-dimensional array arranged to create a combined transmitter field of view that is larger than the individual transmitter field of view, and where the number of optical transmitters along a first direction is larger than the number of optical transmitters along a second direction and the combined transmitter field of view in the first direction is larger than in the second direction, the first direction orthogonal to the second direction, the optical transmitters arranged such that optical axes of the optical transmitters are evenly distributed within the combined transmitter field of view, wherein the optical receiver is mounted on a flat substrate with its optical axis aligned with the optical axis of the combined transmitter field of view and the receiver field of view is larger than, or equal to, the combined transmitter field of view and wherein the optical transmitters are either: - positioned along a surface that is curved around a first axis and curved around a second axis, the first and second axis orthogonal to one another, the first axis perpendicular to the first direction, the second axis perpendicular to the second direction; - positioned with at least one point on a flat surface, each optical transmitter angled to face in a different direction; or - positioned on a flat surface and are fitted with a respective optical wave-guide for directional outcoupling. - positioned along a surface that is curved around a first axis and curved around a second axis, the first and second axis orthogonal to one another, the first axis perpendicular to the first direction, the second axis perpendicular to the second direction; - positioned with at least one point on a flat surface, each optical transmitter angled to face in a different direction; or - positioned on a flat surface and are fitted with a respective optical wave-guide for directional outcoupling.