An experimental study of light concentrating housing used in semiconductor laser transversely pumped YA G laser

This paper introduces a light concentrating housing used in semiconductor lasers pumped YAG laser.It is a half open housing consisting of two symmetrically set identical right angle prisms.The configuration enables the pumping light from one side to illuminate the YAG rod from three different directions.It has a higher geometrical transmission efficiency as well as a better pumping uniformity.