OZ-5000 laser modules are temperature stabilized, free space, laser diode delivery systems. The compact housings contain both the laser diode and the temperature control, and are powered by a single 5 volt DC supply. Both designs have an operating temperature range of 10–45°C, and hold the temperature variation of the laser diode to within less than 0.01°C. This maintains the wavelength variation to better than 0.1nm and also reduces the tendency of the laser diode to mode hop. OZ-5000 modules have standard analog and optional TTL interfaces for OEM applications, and an optional USBcomputer interface upon request.