I. Introduction
Diode-pumped solid-state (DPSS) lasers producing diffraction-limited ( 1, TEM00 mode) visible output are used in a wide range of scientific and industrial applications. To date, commercial laser heads emitting more than several watts output typically measure about 0.5 m and 10 kg in length and mass, respectively. These dimensions limit adoption of the laser sources into potentially large market opportunities such as laser displays for cinema, rear-projection television, and field portable applications. At this power level, the footprint and weight of the head are largely determined by the length of the laser cavity; therefore, a means to reduce the cavity length while maintaining the performance is of interest. In addition, the design of short cavities (15 mm) is important for a number of applications for mode-locked optically pumped semiconductor laser (OPSLs), where pulse repetition rates greater than 10 GHz are desirable [1], [2].