Stacking laser-banks with holes for obtaining a high brightness white light source

A light generating system comprising a first support, a first 2D array of first light sources, first optical elements, a second support, a second 2D array of second light sources, and second optical elements, wherein:

• the first support is configured to support the first light sources and the second support is configured to support the second light sources;
• the first light sources are configured to generate first light source light and the second light sources are configured to generate second light source light;
• wherein the first light sources comprise laser diodes and the second light sources comprise laser diodes;
• wherein the first support comprises a first thermally conductive element and/or wherein the second support comprises a second thermally conductive element;
• the first optical elements are configured downstream of the first light sources, and are configured to collimate the first light source light into first beams of collimated first light source light;
• the second optical elements are configured downstream of the second light sources, and are configured to collimate the second light source light into second beams of collimated second light source light;
• the first support and the second support are configured stacked, wherein the second support comprises an array of through-holes configured aligned with the first optical elements to allow propagation of at least part of the collimated first light source light through the second support;
• a first laser bank comprises the first support, the first 2D array of first light sources, and the first optical elements, and/or a second laser bank comprises the second support, the second 2D array of second light sources, and the second optical elements;
• the first optical elements are configured to collimate the first light source light into first beams of collimated first light source light having a first full width half maximum defined beam angle of at maximum 2°, and/or the second optical elements are configured to collimate the second light source light into second beams of collimated second light source light having a second full width half maximum defined beam angle of at maximum 2°;
• and
• the light generating system is configured to generate system light comprising one or more of the first light source light and the second light source light.