Light converting device with translucent layer disposed on a light converting layer for converting and scattering laser light

A laser-based light source comprising:

• a light converting device a light converter and a translucent body, wherein a first surface of the translucent body is coupled to a top surface of the light converter, wherein a bottom surface of the light converter is coupled to a reflective bottom layer, wherein the light converting device comprises a light coupling structure, wherein the light coupling structure comprises a hole in the reflective bottom layer and a slot in the light converter for receiving a light guide, wherein the light coupling structure comprises a light coupling surface for receiving laser light with a laser peak emission wavelength via the light guide, wherein the light coupling surface is arranged such that at least 80% of the laser light passing the light coupling surface is received by the translucent body, wherein the translucent body comprises a second surface opposite to the first surface, wherein the second surface of the translucent body is coupled to a reflective top layer for reflecting at least a part of the laser light back to the light converter, wherein the light converter is adapted to convert reflected laser light to converted light, wherein a peak emission wavelength of the converted light is in a longer wavelength range than the laser peak emission wavelength, and wherein the reflective bottom layer is adapted such that at least 80% of the converted light is emitted via the translucent body and the reflective top layer;
• a light guide;
• and
• a laser, wherein the light guide is coupled to the light coupling structure, wherein a light exit surface of the light guide is arranged such that the laser light emitted by the laser via the light guide is received by the light coupling surface.