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Method of ascertaining the polarization mode dispersion (PMD) of a transmission system esp. a transmission laser, using a tunable optical element in the form of a narrow-band laser
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Apparatus to emulate a polarization mode dispersion, of the second order, has a unit which can turn its main polarization axis between the output and input of a polarization splitter/combiner
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Fast-acting compensation system minimizing signal distortion caused by polarization mode dispersion in optical fiber propagation
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Monitor for testing performance of dense wavelength division multiplex multiple wavelength communication system
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Device for real time regulation of a position
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Refraction coefficient profile measurement system and process.
