The invention provides a light generating system (1000) comprising (a) first light generating device (110), (b) a first laser (2100), and (c) a second laser (2200), wherein:the first light generating device (110) is configured to generate first device light (111) having a first device centroid wavelength (.sub.cd,1), wherein the first light generating device (110) comprises one or more of a solid state material laser and a super luminescent diode; the first laser (2100) comprises a first lanthanide based luminescent material (2110) configured to convert at least part of the first device light (111) having the first device centroid wavelength (.sub.cd,1) into first luminescent material light (2111), wherein the first laser (2100) is configured downstream of the first light generating device (110) and is configured to provide first laser light (2101) comprising at least part of the first luminescent material light (2111), wherein the first laser light (2101) has a first centroid laser wavelength (.sub.cl,1) in the visible; the second laser (2200) comprises a second lanthanide based luminescent material (2210) configured to convert at least part of the first device light (111) having the first device centroid wavelength (.sub.cd,1) into second luminescent material light (2211), wherein the second laser (2200) is configured downstream of the first light generating device (110) and is configured to provide second laser light (2201) comprising at least part of the second luminescent material light (2211), wherein the second laser light (2201) has a second centroid laser wavelength (.sub.cl,2) in the visible, wherein |.sub.cl,2.sub.cl,1|25 nm; the first centroid laser wavelength (.sub.cl,1) and the second centroid laser wavelength (.sub.cl,2) are selected from different wavelength ranges from C the group of (i) 495-570 nm, (ii) 570-590 nm, (iii) 590-620 nm, and (iv) 620-780 nm, andin a first operational mode of the light generating system (1000) the light generating system (1000) is configured to provide system light (1001) comprising the first laser light (2101) and the second laser light (2201), and wherein in the first operational mode the system light (1001) is white light.

A method and a laser for breaking through the limitation of fluorescence spectrum on laser wavelength is disclosed. The method includes: exciting electrons to a high energy level by pump light, and suppressing an oscillation of radiation light by laser cavity coating, using a laser resonance to enhance a transition probability of an electron-phonon coupling from the high energy level to a multi-phonon coupling level, so as to realize the emission and enhancement of breakthrough fluorescence spectrum and realize the radiation light oscillation, wherein the laser cavity includes an incident mirror, a folding mirror, a tuning element and an exit mirror arranged in sequence along an optical path direction, the laser gain medium is located between an incident mirror and a folding mirror in the laser resonator, and the tuning element is arranged in the laser cavity at a Brewster angle.