2. Research
  3. Photonics
  4. Diode Laser & UV-LED Modules
  5. Quantum Light Modules

Quantum Light Modules

Hybrid integrated miniaturized quantum light modules are newly developed components for mid-infrared (mid-IR) hyperspectral imaging and quantum optical coherence tomography (OCT) sensing.

Our quantum light modules are based on entangled photon pairs that are brought to interference in a nonlinear interferometer - and in this way gain access to the mid-IR spectral range. Measurements are made solely in the NIR. Thus, neither detectors nor radiation sources in the mid-IR are required. For the quantum light modules, we assemble novel laser diodes, micro-optical elements and a nonlinear optical crystal in a very small space.

Micro-integrated laser module
Micro-integrated laser module - detail view
Two employees hold a micromodule in their hands in front of the entrance to the cleanroom and look into the camera.
Two employees and one micromodule

Our current projects

Quantum OCT in mid-IR (QUIN)

In project QUIN we are currently developing a miniaturized sensor head for 3D-quantum imaging using optical coherence tomography with entangled photons in the mid-infrared. For example, this sensor head can be combined with a high-resolution spectrometer to calculate distance and structure information. Such a sensor system will provide 3D-depth information.

Applications

  • Quantum OCT of ceramic and polymer materials

typical wavelengths

  • 3,5 - 4,1 µm

Partners

  • Humboldt-Universität zu Berlin
  • Fraunhofer-Institut für Lasertechnik ILT
  • Solectrix
  • Brüder Neumeister
  • BASF (associated partner)
  • Arges (associated partner)
  • Brilliance Fab Berlin (associated partner)
  • Solectrix Systems (associated partner)

Spectral quantum light microscopy in the mid-IR

The miniaturized quantum light modules that we are currently developing can be used in interaction  with other modules, such as detection and analysis modules, in microscopy and environmental analysis, respectively.

Applications

  • Environmental analytics

Typical wavelengths

  • 3.2 - 3.6 µm

Partners

  • Wessling
  • eagleyard Photonics,
  • Westphalia DataLab
  • Humboldt-Universität zu Berlin
  • Westfälische Wilhelms-Universität Münster

Quantum based early diagnostics (QEED)

We develop high-power diode lasers at 1170 nm and 720 nm, which we micro-integrate in quantum light modules with nonlinear crystals. Together with other components from the project partners, the FBH Prototype Engineering Lab assembles these into a QEED system. The QEED system is a component of a demonstrator that is being developed and tested by the project partners for an imaging method for the early diagnosis of cancer.

Applications

  • Medicine

typical wavelengths

  • 3.3 - 10 µm

Partner

  • Humboldt-Universität zu Berlin
  • Fraunhofer-Institut für Lasertechnik ILT
  • Charité Universitätsmedzin Berlin
  • Ruhr-Universität Bochum
  • Sacher Lasertechnik
  • art photonics
  • Sill Optics
  • LaVision Biotec
  • Miltenyi Biotec

Selected Publications