Investigation of a Helium-Neon Laser

    Our objective in this laboratory project was to study various properties of a helium-neon laser.  We measured the frequency separation between modes to find the wavelength separation at different cavity lengths, produced different modes by interfering with the beam in the laser cavity, and calculated the curvature of the laser's mirror.

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Theory

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Apparatus

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Data and Analysis

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Mode Patterns

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Conclusions

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