Contact

Laser Components USA, Inc.
116 South River Road
Building C
Bedford, NH 03110
USA
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or call us +1 603 821 7040
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Pyroelectric Detectors

Pyroelectric detectors are thermal detectors; i.e. they create an electric signal due to temperature changes in the chip. This temperature change is caused by absorption of light. We do use LiTaO3 and DLaTGS as pyroelectric materials. Basically such detectors cover the whole spectra. However, they are mainly used for mid-wave and long-wave infrared detection (MWIR and LWIR). In addition, the usage in the THz region seems to become more popular these days.

Multi-channel LiTaO3 Pyroelectric Detectors

Multi channel pyroelectric detectors

Multi-channel pyrodetectors: dual-channel, triple-channel and quad-channel versions are available.

Multi-channel pyroelectric detectors (multi-color detectors) are mostly used for gas analysis. Aside from a reference filter, each measurement channel is tuned to a gas absorption line by integrating a bandpass filter. The gas concentration is calculated by applying the Beer-Lambert law. A reference channel improves the long-term stability of the measurement.

Laser Components offers a wide variety of standard bandpass filters for gas analysis (e.g., CO2, CO, NO2, SO2, and hydrocarbons) and reference purposes.
In our datasheet on filters you will find the corresponding filters. Additional filters are available upon request.

The same fundamental principles apply to both multi-channel and one-channel detectors in current mode. The detectors in current mode are particularly easy to integrate into systems; in fact, it is almost identical to Plug&Play integration.

The most compact detector is the three-channel version in a TO-39 housing!

The following product lines are available:

  • Two-channel detectors with filters
    L12 and L22 series
  • Three-channel detectors with filters
    L13 and L23 series
  • Four-channel detectors with filters
    L14 and L24 series

Pyroelectric detectors can be used for:

  • Medical gas analysis such as breath gas analysis
  • Industrial gas analysis
  • Flame detection
  • Hydrogen flame detection

Your contact person

Mark Mitchell
Use our request form*

+1 603 821 7040

* You will be redirected to an
external website created by Laser Components USA.

News »
30.01.2024

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