  We report a dual-frequency injection-locked continuous-wave near-infrared
laser. The entire system consists of a Ti:sapphire ring laser as a power
oscillator, two independent diode-lasers employed as seed lasers, and a master
cavity providing a frequency reference. Stable dual-frequency injection-locked
oscillation is achieved with a maximum output power of 2.8 W. As fundamental
performance features of this laser system, we show its single
longitudinal/transverse mode characteristics and practical power stability.
Furthermore, as advanced features, we demonstrate arbitrary selectivity of the
two frequencies and flexible control of their relative powers by simply
manipulating the seed lasers.
