Single-Wavelength Detectors

Product Overview

  • Up to 10 GHz electrical bandwidth
  • 2.2 – 5.0 µm center wavelength
  • Up to GV/W response
  • Free-space or fiber-coupled input
  • Plug-n-play with built-in pre-amplification
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Single-Wavelength Detector Details

The greatest challenge for mid-infrared detectors is typically the substantial inherent noise and that they collect large amounts of noise from the surroundings. Our single-wavelength detectors alleviates both limitations by using narrowband and efficient upconversion technology together with low-noise silicon-based detectors. This is all done in our plug-n-play detector modules where the infrared signal is mixed with our high-power pump laser to produce a near-visible signal detectable by a versatile range of high response silicon-based detectors. In case you are not in the need for ultra-low signal detection we also offer broad-band solutions that compromise the efficiency but allow your broad-band sources into the regime of high-speed and low-noise mid-infrared detectors.  

Whether you are looking for the smallest or the fastest signals we believe that our portfolio of state-of-the-art mid-infrared detectors can serve almost any challenging measurement task you can imagine.  

Always plug-n-play, maintenance free and with built-in transimpedance amplifier.

If you are interested in > 10 GHz bandwidth, you are welcome to contact us for more information.

Are you interested in the D2250 Single-Wavelength Detector price and its applications? Contact our team today to request a quotation.


  • Pulse characterization
  • Fast-event analysis
  • Ultra-low-level signal extraction
  • Free-space optical communication
  • Remote sensing
  • QCL and OPO beam analysis

Check out the features, and specifications of the
D2250 Single-Wavelength Detector:

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#1 Demo - Nano-second pulse detection

Nano-second pulse detection with only 0.5 μW peak power in the infrared regime.

With NLIR‘s fast and high-response 1GHz tunable detector.

#2 Demo - Tuning a single-wavelength detector

Check out the tunability of narrowband infrared detectors.

Narrowband detectors are the right choice for high efficiency and low noise applications.

Single-Wavelength Detector’s Portfolio

Measurement of mid-IR ns Pulses

Light from an NKT Photonics MIR Compact supercontinuum source, which emits 5 ns pulses at 40 kHz covering a spectrum from 2 µm to 4.2 µm, is measured using two different point detectors. A MIR monochromator selects the wavelength 2.4 µm with a 20 nm bandwidth, and the output is coupled to a 200 µm MIR fiber. The output of the fiber is sent in turn to each of two detectors: an NLIR 240 MHz 2.4 µm Single-wavelength detector (with 50 dB attenuation) and a commercially available 9 MHz InAsSb detector with direct exposure. The figure shows the responses of the two detectors.

single wavelength detector measurements
spectral response of detectors
detectors measurements figure

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How can D2250 Single-Wavelength Detector solve your application measurements?

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