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Novel Power Meter Design Minimized Fiber Power Measurement Inaccuracies

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Novel Power Meter Design Minimized Fiber Power Measurement Inaccuracies

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Manufacturers of fiber optic components like multiplexers, attenuators, and amplifi ers must characterize their products for parameters such as insertion loss and polarization-dependent loss. Insertion loss is usually accomplished by measuring output power variations before and after the component has been connected to a laser source. Polarization-dependent loss is measured by varying the input polarization to the device and measuring the variation in power as the polarization vector is swept through all possible angles. The accuracy of these measurements may be compromised by the power meter used because the meter itself may be sensitive to these types of variations.

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