Newport uses the highest quality semiconductor detector materials available in our 818 Series Low-Power Detectors. In addition, each detector arrives with a complete full-spectrum calibration report detailing detector responsivity in 10 nm increments.
Proprietary detector optics are designed to address the problems associated with measuring coherent light (see Fig. 1 and 2). In ordinary detectors, coherent light causes reading errors across the detector surface and measurements are more sensitive to thermal drift. This results in an additional, unreported 5% to 8% calibration uncertainty when making laser power measurements. Newport’s detector design eliminates these problems for stable, uniform detector response.
Newport’s advanced in-house calibration facility performs the tightest calibrations in the business, further improving the absolute accuracy of our detectors. For more information, refer to Detector Calibration Services (see Optical Detector Calibration Services).
Exclusive OD3 attenuator technology extends the calibrated optical dynamic range of our Cylindrical and Hand-Held Wand Detectors by three decades, as shown in Fig. 4. Our patented attenuator design provides low reflection, high damage threshold and spectral flatness, without the damage susceptibility problems of thin-film attenuators or the spectral variance of simple volume-absorbing attenuators.
Calibration modules are required when using the 818 Series Low Power Detectors with Newport’s legacy power ...

Newport uses the highest quality semiconductor detector materials available in our 818 Series Low-Power Detectors. In addition, each detector arrives with a complete full-spectrum calibration report detailing detector responsivity in 10 nm increments.
Proprietary detector optics are designed to address the problems associated with measuring coherent light (see Fig. 1 and 2). In ordinary detectors, coherent light causes reading errors across the detector surface and measurements are more sensitive to thermal drift. This results in an additional, unreported 5% to 8% calibration uncertainty when making laser power measurements. Newport’s detector design eliminates these problems for stable, uniform detector response.
Newport’s advanced in-house calibration facility performs the tightest calibrations in the business, further improving the absolute accuracy of our detectors. For more information, refer to Detector Calibration Services (see Optical Detector Calibration Services).
Exclusive OD3 attenuator technology extends the calibrated optical dynamic range of our Cylindrical and Hand-Held Wand Detectors by three decades, as shown in Fig. 4. Our patented attenuator design provides low reflection, high damage threshold and spectral flatness, without the damage susceptibility problems of thin-film attenuators or the spectral variance of simple volume-absorbing attenuators.
Calibration modules are required when using the 818 Series Low Power Detectors with Newport’s legacy power meters (Model 840-C, 1830-C, 1835-C, 2835-C and 2832-C). The module, shown in Figure 3, is matched to an individual detector and provides the meter with detector calibration and operating information. The calibration module option is indicated by the /CM suffix in the detector Model number.
When using the detectors with Newport's 841-PE or 842-PE (see High Accuracy Hand-Held Optical Power and Energy Meter) Power/Energy Meter, the 841-DIN adapter is required. This option is indicated by the /PE suffix or the 841-PE adapter can be ordered separately. The 841-DIN adapter should also be used to connect any 818 Series Detector with a CAL-Module to Newport's recently introduced power/energy meters (see High-Performance Optical Meters, High-Performance Hand-Held Optical Power and Energy Meter) which feature a 15-pin D-Sub connector.