USB Photodiode Power Sensors

  • Flexibility of USB interfacing
  • Complete meterless laser measurement systems reduced to the size of a memory stick
  • Measurement data shown and analyzed on PC.
  • Sensitive detectors for  very low power measurements
  • UV enhanced and NIR Detectors (200nm to 1800nm)
  • Fiber adapters available (SMA,ST, FC,LC,SC)
  • NISTand PTB (Physikalisch-Technische Bundesanstalt) traceability

Surface Absorbers

Surface absorbers consist of a thin layers of materials, in general made of special mattes or refractory materials, deposited onto substrates, that can easily transfer heat like high conductivity metals. They are used for CW lasers or other sources that emit long pulses (with duration >300μsec). Radiation is almost entirely absorbed within that thin layer and then released as heat that flows through the thermopile.

Absorption and Damage Threshold Curves for Thermal Heads and Beam Position Sensors

Ordering Code Power Range Detector Type Power Resolution Useful Aperture Spectral Range Cooling
PD-50-D9-UV-USB 10 µW - 50 mW Silicon 100 nW 9.5 mm 200 - 1100 nm Convection
PD-50-D9-VIS-USB 10 µW - 50 mW Silicon 100 nW 9.5 mm 400 - 1100 nm Convection
PD-50-D9-IR-USB 100 µW - 40 mW Germanium 1 µW 9.5 mm 800 - 1800 nm Convection
PD-500-D9-VIS-USB 100 µW - 500 mW Silicon 1 µW 9.5 mm 400 - 1100 nm Convection