Compact high-spectral-radiance fluorescent light source including a parabolic mirror

A light source, comprising:

• a body having a material doped to have a fluorescent property when stimulated at a stimulus wavelength, so that the body emits light in an emission band;
• a collimating device for collecting and collimating at least a portion of the light emitted by the body over a collection area;
• a parabolic mirror positioned to have a focal axis directed at the body and having reflective surfaces disposed outside of the collection area provided by a central aperture through the parabolic mirror so that the collection area is not obstructed by the parabolic mirror;
• multiple laser diodes for providing stimulus light at the stimulus wavelength and positioned in a circular arrangement around the body outside of a projection of the central aperture toward the body, wherein the multiple laser diodes each have an output directed at the parabolic mirror, so that the parabolic mirror focuses substantially all of the stimulus light provided by the multiple laser diodes at the body to stimulate emission of the light emitted by the body, wherein the multiple laser diodes and the parabolic mirror are positioned so that the stimulus light is incident at the parabolic mirror at an angle substantially equal to the Brewster angle, and wherein the one or more laser diodes have junction planes oriented parallel to a plane of reflection of the stimulus light at the parabolic mirror;
• and
• a heatsink thermally and mechanically coupled to the body for removing heat from the body, and wherein a substrate of each of the one or more laser diodes are mechanically and thermally bonded to the heatsink.