Detectors

Similar to photomultipliers, avalanche photodiodes are used to detect extremely weak light intensities. Si APDs are used in the wavelength range from 250 to 1100 nm, and InGaAs is used as semiconductor material in APDs for the wavelength range from 1100 to 1700 nm.

PIN photodiodes convert light to current – without a bias voltage having to be applied. Silicon is commonly used as an inexpensive detector material in the Vis range. For higher demands, InGaAs is used; it covers the widest spectral range from the Vis to the NIR. We offer silicon carbide as a “solar-blind” detector specifically for the UV range.

IR detectors have been a part of our standard product range at LASER COMPONENTS for almost three decades. A distinction is made between sensors for the near infrared range (NIR) from 1.0 µm to 2.5 µm and those for the mid-infrared range (MIR) above 2.5 µm. IR detectors of all modes of operation are a part of our product portfolio and leave nothing to be desired.

Single photon counting modules, also known as SPCMs, count individual photons with high quantum efficiency APD.