Laser ComponentsLaser Components

InGaAs PIN Photodiodes

InGaAs 500 – 2600 nm

IR photodiodes with an emphasis on quantum efficiency: LASER COMPONENTS develops and manufactures photodiodes in the spectral range of up to 2600 nm.


The IG22 and IG26 series were developed with an emphasis on quantum efficiency. As well as our original IG17 (up to 1700 nm), IG22 (up to 2200 nm) and IG26 (up to 2600 nm) series we have a selection of supplementary detectors for specific wavelength peaks; our IG19 (up to 1900 nm) and IG24 (up to 2400 nm) series.

Main Applications for IR Photodiodes:
  • Spectroscopy (and NIR-FTIR in particular)
  • Laser monitoring
  • Non-contact temperature measurement
  • Tunable diode laser spectroscopy (TDLS)
  • Spectrophotometry, e.g. for measuring moisture
  • Sorting applications
  • Flame regulation
Key Features Include the Following:
  • Peak sensitivities from 1.05 A/W to 1.45 A/W
  • High dynamic range
  • High linearity
  • Low temperature coefficient of the sensitivity of up to 0.01%/K
  • Panchromatic, i.e. sensitive in the Vis and NIR ranges
InGaAs and Extended InGaAs Photodiodes by Laser Components

LASER COMPONENTS produces photodiodes in house at our production facility in Tempe, Arizona. They have been available on the market since 2013 and offer a strong cost-performance ratio.

The following series are available:

  • IG17 series (500-1700 nm)
  • IG19 series (500-1900 nm)
  • IG22 series (500-2200 nm)
  • IG24 series (500-2400 nm)
  • IG26 series (500-2600 nm)

This product portfolio was designed with great attention to detail: One of our most obvious features is the panchromatic nature of all of our InGaAs photodiodes, providing detection down to 500 nm. Further advantages include a lower temperature coefficient and a reduced off-area sensitivity.

Active diameters from 0.25 mm to 3 mm are available as standard, and are available in hermetically-sealed TO housings with or without an integrated Peltier cooler, as an SMD, on a ceramic mount, or simply as a chip.

In addition to the industry standard sizes of 1 mm and 2 mm, we also have an in-between active area size available: 1.3 mm. This makes it possible to package the photodiode in a TO-46 housing (with a base diameter of 5.3 mm), delivering 70% more signal in the same housing dimensions compared to a photodiode with an active area of 1 mm.

Customer-specific designs are possible, such as hermetic integration of interference filters.Laser Components’ InGaAs photodiodes are also available as digital sensor modules dubbed the MAJOR Series.