Laser System in the Visible Spectrum (SHG)
Scheme
Brilliant semiconductor laser devices with internal Bragg gratings and laser systems with external filters respectively are used as pump sources to generate blue laser light by frequency doubling.
Applications
- Display technology
- Digital photo finishing
- Medical applications
- Optical sensors (spectroscopy)
Wavelength
- 532 nm
- 488 nm
- 460 nm (in preparation)
Chip technology
- Semiconductor layers by MOVPE
- Laser technology (processing and mounting)
- After first epitaxy: Realization of the Bragg grating for frequency stabilization with holographic lithography and etching
- Beam shaping
Typical data
- pump source and nonlinear crystal in a single pass configuration
- Longitudinal single mode and lateral diffraction limited
- Maximum generated blue laser light of 1.77 W at 532 nm
- With small footprint: 1 W at 490 and 532 nm [Publication, Fiebig 2009] [Publication, Liu 2011]