Breech Mounted Lasers (BMLs) have been successfully used to demonstrate laser ignition of howitzer propellant
charges including bag, stick, and the Modular Artillery Charge System (MACS). BMLs have been integrated and tested
on many artillery systems, including the US Army's M109A6 Paladin, M198, M777 Light Weight, Crusader, and Non-Line-of-Sight Cannon (NLOS-C). Until now, these lasers have been relatively large and inefficient systems based on a
flashlamp pumped Nd:YAG laser design. Modern vehicle platforms will require smaller, more efficient lasers that can
operate under increased shock and vibration loads. Kigre's new DPSS (Diode Pumped Solid State) lasers appear to meet
these requirements. In this work we provide an evaluation of HESP (High Efficiency Side Pumped) DPSS laser design
and performance with regard to its application as a practical artillery laser ignition system.