AbstractBlue semiconductor laser pumped Pr:YLF orange laser at 607 nm is reported. Compared to laser diodes (LDs), the optically pumped semiconductor lasers (OPSLs) have better beam quality, higher output power and higher absorption efficiency. So pumping with OPSLs can help to improve the laser performance. The polarized emission spectra of Pr:YLF in the orange band at 12 K and 300 K are measured, showing that the orange transition 3P0→3H6 consists of 6 emission lines. An OPSL providing output power of up to 1.9 W and centered at 479.2 nm is used as the pump source. With a 5 mm-long Pr:YLF crystal with a doping concentration of 0.5% and a plano-concave cavity, orange laser emission at 607 nm with an output power of 524 mW is obtained, corresponding to a slope efficiency of 39.1%.