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Newport Intros 3 Thermopile Detectors
Irvine, CA — Newport Corporation is introducing three new additions to its 818P Series of thermopile detectors — the fan-cooled 818P-500-55, the water-cooled 818P-3KW-060, and the high-sensitivity 818P-001-12NIR. These updated sensors are intended to meet more stringent user requirements; one of the sensors is capable of measuring as low as 1µW range with very low thermal drift, and another can measure up to 3kW of continuous-wave (CW) optical power, which is suitable for fiber lasers and CO
The first model, the 818P-500-55 thermopile detector with a cooling fan, can handle up to 500W of continuous optical power — up from the company's previous 400W limit for a fan-cooled thermopile detector. The new device also has a large 55mm diameter active area and very flat responses in an extended wavelength range from 0.19 to 20 microns.
The second model, the 818P-3KW-060, is a water-cooled detector that can handle up to 3kW of CW optical power, the highest possible power for the company's optical detectors. When illumination is limited, it can handle up to 4kW of power for up to five minutes. Strategically designed to perform effectively and with low sensitivity to the cooling water temperature, this model is suitable for lasers with a very high optical output power, such as CO
lasers and fiber lasers. Output connections include an attached cable with a DB15 connector — for use with the company's optical power meter — and/or a USB port for direct interface without a power meter.
The third product is the innovative, high sensitivity 818P-001-12NIR thermopile optical sensor. It is designed to measure down to micro-watt-level optical power, with a wavelength range from 0.28 to 1.36µ. It is insensitive to beam position and offers the spatial dependence of thermopiles, while retaining the high sensitivity only available with photodiodes. Suitable for users working with lasers in the µW and mW range and those who require a much lower thermal drift — a low of 6µW/°C — than standard thermopile detectors. The device is calibrated with a fused silica window mounted on the tube, so that long wavelengths (>1.36µ) can be cut out of the measurement.
Contact: Newport Corporation, 1791 Deere Avenue, Irvine, CA 92606
800-222-6440 or 949-863-3144 fax: 949-253-1680 Web:
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