- Instrument Overview
By assembling and tuning a helium-neon laser and varying the cavity length of the resonator, students can observe changes in beam parameters, thereby developing their practical experimental skills. Using a confocal spherical scanning interferometer, students can intuitively observe the spectral distributions of transverse and longitudinal modes.
- Product Features
Available Experiments:
1. Learn the assembly and adjustment of helium-neon lasers, understand the principles and structure of gas lasers. Study the collimation, tuning, and oscillation of helium-neon lasers, as well as laser generation.
2. Measure the laser beam spot distribution and calculate the divergence angle.
3. By altering the cavity length and output mirror, observe and measure the relationship between the cavity mode and laser power, transverse mode, and longitudinal mode, and verify resonator theory.
4. Use a confocal spherical scanning interferometer to observe the spectral distributions of the longitudinal and transverse modes, and measure the fine constant of the scanning interferometer.