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extinction ratioThe ratio of two optical power levels, of a digital signal generated by an optical source, e.g., a laser diode, where P1 is the optical power level generated when the light source is "on," and P2 is the power level generated when the light source is "off." Note: The extinction ratio may be expressed as a fraction or in dB. [2196 [..]
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extinction ratioThe relationship between the intensity of incident light to intensity of transmitted light passing through an optic. It is used to categorize a polarizer or laser's ability to pass a given polar [..]
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