We present a ring laser system that offers convenient exchange between titanium:sapphire and dye operation. Different
approaches reduce the short-term linewidth of the system, such as lock to the side of a fringe of a reference etalon and
using a Pound-Drever-Hall scheme, can be used for both configurations and are evaluated. Furthermore, titanium:sapphire and dye versions are compared regarding: efficiency, tuning range, linewidth, single-mode scan range, amplitude-noise and second harmonic generation.
Tunable, frequency stabilized lasers are essential for numerous precision measurements and experiments such as laser cooling. We report the construction of a titanium:sapphire laser system (called <i>Matisse</i>) that is designed to have a frequency bandwidth stability of 10<sup>-8</sup> in 1 sec averaging. This level of accuracy is achieved by the use of unique mechanical features, careful choice of optical components and state-of-the-art active control. The system is comprised of a ring cavity, an intracavity electro-optic modulator, a digital signal-processor-based control unit and a reference cavity. Optionally, the output can be frequency doubled to extend the accessible wavelength range. We present data of the output energy achieved, tuning curves, beam parameters doubling efficiency, amplitude noise and spectral noise.