%0 Journal Article %T High aspect ratio DBR gratings for narrow linewidth red lasers %A Kuusela, Luukas %A Ulkuniemi, Riina %A Aho, Timo %A Uusimaa, Petteri %J Proceedings of SPIE %V 12447 %P 1244717-1244717-4 %@ 0277-786X %D 2023-03-08 %I SPIE %~ DeepDyve