Sacher Lasertechnik GmbH offers automatically tunable laser systems in Littman/Metcalf configuration, with a typical output power of 500 mW over a large tuning area. They provide fine tuning via a piezo actuator with resolution of 10 MHz, coarse tuning via a DC servo motor up to 25 nm at 780 nm and a mode-hop-free tuning range of up to 300 GHz. Linewidth is <500 kHz, and side mode suppression is >50 dB. Constant current and power operation modes also are featured. Along with free beam and fiber-coupled versions, systems with wavelengths of 760 to 1080 nm are available. Remote control is possible via USB, GPIB or RS-232 interfaces.