Novel diode-pumping immersion-type liquid-cooling solid laser gain pool

The invention relates to the technical field of novel lasers, more specifically, a novel diode-pumping immersion-type liquid-cooling solid laser gain pool. The gain pool can solve problems that an immersion-type liquid-cooling solid laser is difficult in uniform heat dissipation, and poor in light beam quality. The gain pool consists of an upper support (1), a lower support (2), a quartz window (3), a gain medium (4), and two end cover plates. The gain pool ingeniously employs a technical route of single-cavity oscillation, and prolongs an optical path while guaranteeing the compact structure of a laser. The gain pool achieves the uniform cooling of two surfaces of the gain medium (4) through the laminar flow of high-pass liquid, ingeniously builds the technology of heat management, and improves the light beam quality of the laser.