Coherent® Thermopile Power Sensors

Coherent® thermopile power sensors are ideally suited for measuring the average power of continuous wave lasers or pulsed laser energy. The thermopile sensor absorbs the incident laser radiation and converts it to heat, which then flows to a heat sink. The temperature difference between the absorber and the heat sink is converted into an electrical signal by a thermocouple contact. Unlike semiconductor sensors, thermopile sensors do not saturate. Also, unlike semiconductor sensors, thermopile sensors have a higher power capacity and a smoother spectral response.

General specifications

Product Model