610 nm band AlGaInP compressively strained multiquantum-well laser diodes with a multiquantum barrier have been successfully fabricated by MOCVD using (100) GaAs substrates with a misorientation of 9-degrees towards the (011) direction. The oscillating wavelength at 25-degrees-C is 615 nm, which is the shortest ever reported for AlGaInP laser diodes operating at 25-degrees-C.