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Balanced Detectors

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Balanced Detectors

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These are differential amplification type photoelectric conversion modules containing two photodiodes with uniform characteristics. The photodiodes are connected in a direction that cancels out the photocurrent of each photodiode. This configuration cancels out the common mode noise of the two incident light rays. The minute difference in light levels is treated as a displacement signal, converted into an electrical signal, and output. We offer a built-in InGaAs PIN photodiode type covering a spectral range of 0.9 to 1.7 µm.

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