Thermal management is still a great challenge for high-power phosphor-converted white-light-emitting diodes(pc-WLEDs)intended for future general lighting.Luminescent glass based WLEDs(LG-WLEDs)are strongly expected to be an interesting and excellent alternative approach to traditional pc-WLEDs fabricated by combining InGaN based LED chips,with phosphor and organic resin.In the past years,many efforts have been made to develop luminescent glasses for LG-WLEDs.