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Amplifier Detectors

Photonics Spectra
Dec 2016
Newport CorporationRequest Info
 
IRVINE, Calif. — Amplifier DetectorsNewport Corp. has announced the LIAD series of Lock-In Amplifier Detectors for calibrated power measurement low-level light sources.

The detectors use a pyroelectric or photodiode sensor in combination with a built-in lock-in amplifier to reduce noise and drift. They are capable of measuring power down to 300 fW for pulsed light sources with frequencies of 200 Hz or higher.

All LIAD Series Lock-in Amplifier Detectors include an 18-Hz chopper that must be placed close to the signal source. The sensor detects the chopped signal only, suppressing all signals not at 18 Hz. The LIAD series features the photodiode-based model LIAD-PD-300N, which covers wavelengths between 200 and 1100 nm, as well as the pyroelectric detector-based LIAD-PY-100M, covering the range between 0.15 and 12 µm. Both models are compatible with Newport 843-R Series, 1919-R and 841-PE- USB power meters.


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