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Photodetectors

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Buyer's Guide

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67 suppliers for photodetectors are listed.

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Ask RP Photonics for advice on photodetection, e.g. concerning details of photodiodes, electronic preamplifiers, etc.

Definition: devices used for the detection of light

German: Photodetektoren, Lichtdetektoren

Category: photonic devices

How to cite the article

Photodetectors are devices used for the detection of light – in most cases of optical powers. As the requirements for applications vary considerably, there are many types of photodetectors which may be appropriate in a particular case:

Important Properties of Photodetectors

Depending on the application, a photodetector has to fulfill various requirements:

Different detector types, as listed above, differ very much in many of these properties. In typical application scenarios, some requirements totally rule out the use of certain detector types, and quickly lead to a fairly limited choice. Note also that there are some typical trade-offs. For example, it is frequently difficult to combine a high detection bandwidth with a high sensitivity.

See also: photodiodes, p–i–n photodiodes, avalanche photodiodes, metal–semiconductor–metal photodetectors, velocity-matched photodetectors, photomultipliers, powermeters, photon counting, noise specifications, noise-equivalent power, responsivity

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cover of print encyclopedia

The Encyclopedia of Laser Physics and Technology is also available in the form of a two-volume book. Maybe you would enjoy reading it also in that form! The print version has a carefully designed layout and can be considered a must-have for any institute library, laser research group, or laser company. You may order the print version via Wiley-VCH.

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Trouble with Specifications

Specifications for lasers and other photonics products are essential for the process of buying such things. Nevertheless, many do not properly deal with them:

Various problems can arise:

Our Photonics Spotlight article and our encyclopedia article on laser specifications give you important hints. In case of doubt, contact RP Photonics to get competent and impartial advice.

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