Heterodyne interferometer using a novel two-frequency Nd:YAG laser

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Heterodyne interferometer using a novel two-frequency Nd:YAG laser

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The authors present, for the first time, the use of two orthogonal polarised axial modes of an Nd:YAG microchip laser in heterodyne interferometry. The realised heterodyne interferometer was used for direction sensitive velocity measurements.

Inspec keywords: velocity measurement; birefringence; light interferometers; light polarisation; neodymium; solid lasers; measurement by laser beam; yttrium compounds

Other keywords: YAl5O12:Nd; heterodyne interferometer; YAG:Nd; two-frequency Nd:YAG laser; direction sensitive velocity measurements; orthogonal polarised axial modes

Subjects: Solid lasers; Velocity, acceleration and rotation measurement; Laser beam applications; Optical interferometry; Velocity, acceleration and rotation measurement; Laser applications

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