Interferometric Study of the Modes of a Visible-Gas Laser with a Michelson Interferometer
J.J. ten Bosch, M.J.A. de Voigt
Abstract
J.J. ten Bosch, M.J.A. de Voigt
Abstract
A simple Michelson interferometer and a red He-Ne laser were used to measure the visibility of interference fringes as a function of path-length difference of the two beams. The number and intensity of axial modes could thus be determined for various degrees of longitudinal coherence, obtained by deadjustment of the laser-mirror system. The experiment may be used as a student exercise.
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A simple Michelson interferometer and a red He-Ne laser were used to measure the visibility of interference fringes as a function of path-length difference of the two beams. The number and intensity of axial modes could thus be determined for various degrees of longitudinal coherence, obtained by deadjustment of the laser-mirror system. The experiment may be used as a student exercise.
Key concepts: Physics, Interferometry, Michelson interferometer, Optics, Interference (communication), Interferometric visibility, Coherence (philosophical gambling strategy), Laser