The LA-300 Argon Ion Laser provides the best combination of laser power and versatility for an entry-level air cooled laser for LDV and phase Doppler systems. It includes a compact resonator assembly for fast warmup and excellent pointing stability. A custom plasma tube design offers the optimum balance of green and blue line powers, and excellent operating performance over a wide range of tube currents. These features make the LA-300 an ideal choice for entry level 1D and 2D LDV and phase Doppler systems.