Optoelectronics

At Fraunhofer IAF, we carry out research on innovations in both optoelectronic components and systems.

 

We develop infrared semiconductor lasers, laser systems based on them as well as LED modules, infrared and UV detectors specifically for your field of application.

In the field of semiconductor lasers, we focus on the technologies of optically pumped semiconductor disk lasers and quantum cascade lasers (QCL). The semiconductor lasers cover the wavelength range from 2 – 11 µm.

Our detector technology for applications in Stirling-cooled, high-resolution cameras and in industrial measurement technology for the mid- and long-wave infrared is unique worldwide. It enables the production of spatially high-resolution, high-performance thermal imaging cameras, which either operate in the classic monospectral mode or have the capability of color vision in the infrared.

Our semiconductor lasers and detectors can be used for a variety of applications: from quality control of food and pharmaceuticals to monitoring industrial processes and detection of explosives.

What we offer

Miniaturized, broadband spectrally tunable quantum cascade laser with emission wavelengths in the mid-infrared range and high scanning frequency up to 1 kHz.
© Fraunhofer IAF
Miniaturized, broadband spectrally tunable quantum cascade laser with emission wavelengths in the mid-infrared range and high scanning frequency up to 1 kHz.
  • Epitaxy of laser structures on customer order

  • Processed QCL chips (chip-on-submount)  

  • Development of customer-specific laser modules including control electronics and software

  • Functional demonstrators for infrared spectroscopic sensor technology

  • Development of front and back side technology processes for quantum cascade lasers

Devices using heterojunctions are being developed in order to improve the performance. These have significant advantages over commonly used homojunction devices, particularly in the field of dark current and noise behavior.
© Fraunhofer IAF
Devices using heterojunctions are being developed in order to improve performance. These have significant advantages over commonly used homojunction devices, particularly in the field of dark current and noise behavior.
  • Foundry Services for the epitaxy of IR detector structures based on III-V semiconductors 

  • Development of front and back side technology processes for detector arrays 

  • Complete small series production runs for imaging detector arrays and thermoelectrically cooled or uncooled individual detectors

Hermetically sealed High-Performance LEDs
© Fraunhofer IAF
The use of light ceramics in combination with innovative packaging technology can significantly improve the range of applications of LEDs in hot, wet or chemically contaminated environments.
  • Comprehensive measurement technology and consulting services for damage and failure analysis of LEDs

  • LED-based system demonstrators in the fields of smart lighting or adaptive lighting

What’s happening at IAF

A short overview

© Fraunhofer IAF

Infrared lasers for flexible use

The Fraunhofer IAF specializes in the research and development of semiconductor lasers and laser modules emitting in the infrared spectral region.

© Fraunhofer IAF

External cavitiy quantum cascade lasers

The quantum cascade lasers developed at Fraunhofer IAF cover a wavelength range from 4 – 11 μm and offer a broad spectral tuning range.

© Fraunhofer IAF

Application laboratory for infrared spectroscopy

Our application laboratory offers you the possibility to test whether our real-time infrared spectroscopy is suitable for your specific application.

© Fotolia

Infrared semiconductor disk lasers

High power, tunable wavelength, or extremely narrow linewidth: the semiconductor disk lasers (SDLs) developed at Fraunhofer IAF can be customized to a wide range of applications.

© Bundeswehr

Infrared detectors for quality control

In the fields of research and industry infrared and Raman spectrometers are predominantly used for material analysis and quality control.

© Fraunhofer IAF

Infrared detectors for alerting sensors

The bi-spectral InAs/GaSb superlattice detectors, developed at the Fraunhofer IAF, are the only ones of this design which can provide infrared images with spectral information as they can see in color.

© Fraunhofer IAF

UV detectors

In the industrial use of ultraviolet light (UV), for instance in the curing of paint and adhesives or in water treatment applications, continuous monitoring of the light intensity is useful or even mandatory.

© Fraunhofer IAF

Defect repair of LED chips by ultraviolet laser micromachining

The method of ultraviolet laser micromachining of LEDs developed by Fraunhofer IAF is suitable for defect repair of large-size LED chips with lateral or vertical current flow design.

© Fraunhofer IAF

LED lighting with gallium nitride

Scientists at the Fraunhofer IAF have developed an LED lamp which provides a light output power twice as high as commercial models of the same size.

Videos relating to Optoelectronics

 

IR-Laser Fabrication Chain

This video explains the processes and steps involved in the development of an infrared laser. The video runs without sound or speech.

Optical Pump Semiconductor Disc Laser

This video illustrates the functionality of an optical pump semiconductor disk laser. The video runs without sound or speech.

Quantum Cascade Laser Based Spectroscopy

This video explains how spectroscopy based on quantum cascade lasers works. The video runs without sound or speech.

Infrared Semiconductor Lasers

In this video we show you our wide range of applications of infrared lasers. The video runs without sound or speech.

Current projects

More information on the current research projects can be found here