Scheme
In high-power micro-modules, several semiconductor lasers are combined on a compact footprint using wavelength division multiplexing and/or polarization coupling. As a result, high optical output powers can be achieved. The emission is available as a free-space beam or from an optical fiber . The modules can therefore be used both as pump sources for solid-state lasers and in direct material processing. In addition to the optical concept, the thermal design is decisive.
Applications
- Material processing
- Pumping ultrafast solid-state lasers
- Medication injection without syringes
Technology and mounting
- Chip design optimized for module integration
- Semiconductor layer structures using MOVPE
- Laser chip technology including surface gratings
- Optical design and thermomechanical management
- Hybrid integration of active and passive elements
- Precision assembly on individually adapted inlay
- Spectral coupling and polarization coupling
- Integration of electronics for pulsed operation
- Fiber coupling (single-mode fibers, 20-µm low-mode number fibers or multi-mode fibers)