External cavity high-power helium neon laser 632.8nm discharge tube length 400-2000mm power 9-140mW

This series of external cavity helium neon lasers uses a rod-shaped advanced alloy steel as the longitudinal component of the laser bracket (insulation structure), and an aluminum plate as the shell. The heat generated by the laser tube has little effect on the thermal deformation of the laser bracket for installing the resonant cavity, and the preheating time is short. The aluminum plate shell can keep the laser bracket at a certain temperature and achieve long-term stability of the laser output power. The laser casing is grounded, and there is no static induction or tingling sensation when touching the laser casing by hand. This series of external cavity helium neon lasers has a small volume, light weight, and high output power stability.