Request InfoMKS/NewportThe LIAD series Lock-in Amplifier Detectors are ideal detectors for calibrated power measurements of very low-level-light sources. The detectors are used in conjunction with chopped (at 18 Hz) CW or quasi CW radiation, using a digitally synthesized lock-in amplifier to reduce external noise to a minimum. The LIAD-PD-300N Si detector can measure as low as 300 fW at 200 – 1100 nm wavelength range. 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