A LD side-pumped,high-energy,high-beam-quality,Q-switched all-solid-state Nd:YAG laser without water cooling is developed.The laser is integrally cooled by using a thermoelectric cooler(TEC),which is conducive to the miniaturization and portability of laser.The dimension of Nd:YAG crystal rod used in experiment isφ7mm×100mm and the Nd atom number fraction is 1.1%.The maximum peak power of LD pumping is 15 kW.The laser output at 1064 nm with the maximum pulse energy of 350 mJ,pulse width of 9.7ns,optical-ele...