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    1. Test & Measurement
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    Radiometer from Ophir Photonics measures very low powers down to 300 fW

    Feb. 17, 2016
    The RM9-PD radiometer, which measures the power of very low-level CW or QCW sources, integrates a photodiode sensor.
    Content Dam Lfw Online Articles 2016 02 Os021716 01hi Web

    The RM9-PD radiometer, which measures the power of very low-level continuous-wave (CW) or quasi-CW sources, integrates a photodiode sensor and an 18 Hz chopper. The sensor is calibrated over the entire range of wavelengths—from 0.2 to 1.1 µm. A digitally synthesized lock-in amplifier reduces external noise to a minimum, allowing the sensor to measure power levels from 300 fW to 300 nW. The output of the sensor can be displayed on any of the company's standard meters, or on a PC or Android smartphone or tablet.
    Ophir Photonics
    North Logan, UT
    www.ophiropt.com

    About the Author

    LFW Staff

    Published since 1965, Laser Focus World—a brand and magazine for engineers, researchers, scientists, and technical professionals—provides comprehensive global coverage of optoelectronic technologies, applications, and markets. With 80,000+ qualified print subscribers in print and over a half-million annual visitors to our online content, we are the go-to source to access decision makers and stay in-the-know.

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