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Sensing & Measurement

Thermopile detectors

Newport

Newport Corporation introduces three new additions to the Newport 818P Series of thermopile detectors, the fan-cooled 818P-500-55, the water-cooled 818P-3KW-060, and the high-sensitivity 818P-001-12NIR. Newport is meeting more demanding customer requirements with these updated sensors, one of which is capable of measuring as low as 1 uW range with very low thermal drift, and another which can measure up to 3kW of continuous-wave (CW) optical power, which is ideally suited for fiber lasers and CO2 lasers.

The 818P-500-55 thermopile detector with a cooling fan, can handle up to 500 W of continuous optical power. The new device also features a large 55 mm diameter active area and very flat responses in an extended wavelength range from 0.19 to 20 microns.

The 818P-3KW-060 is a water-cooled detector that can handle up to 3kW of CW optical power, the highest possible power for Newport optical detectors. When illumination is limited, it can handle up to 4 kW of power for up to five minutes. Strategically designed to perform effectively and with low sensitivity to the cooling water temperature, this model is ideal for lasers with a very high optical output power, such as CO2 lasers and fiber lasers.

The innovative, high sensitivity 818P-001-12NIR thermopile optical sensor is designed to measure down to micro-watt-level optical power, with a wavelength range 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 only available with photodiodes.

www.newport.com