Over the past twenty years, planets orbiting other stars have become an important research topic, capturing the interest of scientists and the general public alike. Detecting such objects requires very precise astronomical measurments. One technique that has been very successful for this research is the so-called radial-velocity technique. It measures the motion of the star due to the gravitational pull of the planet, therefore we can learn about the existence of the planet, and even about its mass, without ever actually seeing it. An important prerequisite for such measurements is the availability of calibration sources, which provide very stable references with which the motion of the star can be compared. The objective of this project is the development of a new type of calibration source, which is more reliable and costs less than alternative technologies.