Overview
As the most widely used HeNe laser, it has a red 632.8nm spectral line output. This laser is widely used in collimation and line drawing of buildings and sawmills. Because of its high signal-to-noise ratio, high-power (e.g. 35mW) output is used in Raman spectrometer, fast scanning and so on. Extremely stable single-mode output and coherence length up to several kilometers make it an ideal light source for accurate measurement, wavelength calibration and other applications. HeNe laser (power less than 0.95mw), which meets the class II laser safety standard, is widely used in areas with very high requirements for laser safety, such as laser indication, collimation and teaching applications. Its service life can reach 50000 hours.