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Optical Cage System Application: Michelson Interferometer

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Optical Cage System Application: Michelson Interferometer

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A Michelson Interferometer is a simple interfermetric design involving a coherent light source, beamsplitter, and two mirrors. The design first splits the coherent source using the beamsplitter. The two beams then travel slightly different distances before reflecting off the mirrors and returning into the beamsplitter, where the two beams then recombine. If the difference between the two beams’ path lengths is less than the coherence length of the source, then interference fringes will be generated. Because the coherence length of a source can be extremely short, precision components and alignment are crucial, but often difficult to achieve.

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