We report on an orange-emitting intracavity frequency-doubled semiconductor disk laser based on the material system GaAsSb/GaAs. The infrared fundamental wavelength of lambda=1220 nm corresponds to a second-harmonic wavelength of lambda=610 nm. The second-harmonic generation is done using a lithium-triborate crystal as the nonlinear material. We have achieved an orange continuous-wave frequency-doubled laser output power of 30 mW in the fundamental transverse mode at a wavelength of lambda=610 nm. (C) 2003 American Institute of Physics.