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Thermopile Detectors Measure Optical Range  The Newport 818P Series of thermopile detectors now includes the fan-cooled 818P-500-55, the water-cooled 818P-3KW-060, and the high-sensitivity 818P-001-12NIR.
The first model, the 818P-500-55 thermopile detector with a cooling fan can handle up to 500 W of continuous optical power. It features a 55-mm-diameter active area and flat responses in a wavelength range of 0.19 to 20 microns. For more information, visit www.newport.com/thermal-500W.
The 818P-3KW-060 water-cooled detector can handle 3 kW of CW optical power. When illumination is limited, the detector can handle up to 4 kW of power for 5 min. Designed to perform effectively and with low sensitivity to the cooling water temperature, this model is suited for lasers with a high optical output power, such as CO2 lasers and fiber lasers. Output connections include an attached cable with a DB15 connector (for use with an optical power meter) and/or a USB port for direct interface without a power meter. For more information, visit www.newport.com/thermal-3kW.
The high-sensitivity 818P-001-12NIR thermopile optical sensor measures down to micro-watt-level optical power, with a wavelength from 0.28 to 1.36 microns. This product is insensitive to beam position and offers the spatial dependence of thermopiles while retaining the high sensitivity available with photodiodes. Suitable for users working with lasers in the µW and mW range and for those who require a much lower thermal drift (6 µW/C) than standard thermopile detectors, the optical sensor is calibrated with a fused silica window mounted on the tube, so long wavelengths (>1.36 microns) can be cut out of the measurement. For more information, go to www.newport.com/thermal-1W.
Newport Corporation
1791 Deere Avenue
Irvine CA 92606
Phone: 949-863-3144
Fax: 949-253-1680
http://www.newport.com
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