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Coherent® High-Sensitivity Thermopile Sensors

Coherent® High-Sensitivity Thermopile Sensors

Coherent® High-Sensitivity Thermopile Sensors


  • Broad Spectral Range with High Sensitivity and High Resolution
  • Large Active Area Sensors up to 19mm in Diameter
  • Flat Broadband Output with No Saturation above 1mW/cm2

Coherent® High-Sensitivity Thermopile Sensors are designed to have a broad spectral response to accommodate an array of lasers with different wavelengths. The large active area and high resolution of these thermopile sensors allows for accurate measurements of low-power lasers. A range of models are available to meet specific needs relating to thermal stability, background radiation, and air current effect. Coherent® High-Sensitivity Thermopile Sensors are designed to accurately measure the laser power of small laser diodes, HeNe lasers, and small ion lasers. Unique to this design, these sensors will not saturate when laser power exceeds 1mW/cm2.

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