To develop ultrastable laser light sources based on stabilized cavity diode lasers, Sacher Lasertechnik GmbH of Marburg, Germany, and Triad Technology Inc. of Longmont, Colo., have formed a partnership. Under the agreement, Sacher will contribute expertise in tunable high-power external-cavity diode lasers and antireflection coatings, and Triad will provide electronic stabilization techniques and the technology for manufacturing reference gas cells. Ultrastable, high-power laser systems have applications in spectroscopy, frequency standards, and optical cooling and trapping.