Mount for SHG light source at 488 nm
Mount for SHG light source at 488 nm
SHG microsystem light source at 488 nm
SHG microsystem light source at 488 nm

Microsystem Light Source in Blue and UV Spectral Range for Applications in Sensors

Laser diode systems based on microsystem technology emitting at 488 nm for excitation light sources for Raman and fluorescence spectroscopy - BMBF project FreshScan.

Functional principle

A DFB-RW laser is used as a pump source. Micro-optics focus the beam into a waveguide of a crystal for efficient non-linear frequency conversion. Output powers of 50 mW at 488 nm can be reached at low pump powers of the DFB-RW laser. The laser module is mounted on a carrier with a footprint of 25 x 25 mm.

Applications

  • Excitation light sources for Raman and fluorescence spectroscopy
  • Various sensor applications

Wavelength

  • 488 nm

Technology and Mounting

  • Semiconductor structures with MOVPE
  • Laser structures with internal gratings
  • Chip technology
  • Active alignments on a micro-optical bench
  • Non-linear frequency conversion

Typical data