High brightness light source comprising a blue laser pumping a green yellow phosphor and a yellow orange superluminescent diode pumping a red phosphor

Abstract

The invention provides a light generating system () comprising (i) a plurality of light sources (, . . . ), (ii) a first luminescent material (), and (iii) a second luminescent material (), wherein: (a) a first light source () is configured to generate first light source light () having one or more wavelengths in the blue wavelength range and having a first centroid wavelength (λC), wherein the first light source () is a laser; (b) the first luminescent material () is configured to convert at least part of the first light source light () into first luminescent material light () having one or more wavelengths in the green and/or yellow wavelength range; (c) a second light source () is configured to generate second light source light () having one or more wavelengths in the yellow and/or orange wavelength range and having a second centroid wavelength (λC), wherein λC>λC; wherein the second light source () is a superluminescent diode; (d) the second luminescent material () is configured to convert at least part of the second light source light () into second luminescent material light () having one or more wavelengths in the orange and/or red wavelength range; and (e) in an operational mode the light generating system () is configured to generate system light () comprising the first luminescent material light () and the second luminescent material light ().