Fraunhofer ILT develops fiber lasers and amplifiers with adapted properties for pulsed and cw operation. Of paramount importance is the control of special properties – for example, polarization, bandwidth or beam quality. By using different conceptual designs for pulse generation, from gain switching to mode coupling, the institute has developed systems that generate pulse duration ranges from a few 10 picoseconds to milliseconds. With commercial and self-developed tools, it can simulate oscillators and linear amplifiers spectrally and temporally resolved.
Focal points of research and development are pulsed linear amplifiers, Q-switched and cw-fiber lasers with high output power and laser-written fiber gratings. Thanks to the appropriate assembly and connection technology, the institute can build laser systems with low attenuation and high performance stability. The high level of integration results in robust and adjustment-free beam sources. Currently, systems are based on active fibers with large cores in the range of 50 μm to 100 μm for pulsed operation with pulse durations of a few tens of nanoseconds and narrowband amplifiers for cw operation with line widths of less than 1 kHz.
Fraunhofer ILT offers its customers feasibility studies on individual tasks, the development of fiber lasers with adapted radiation properties, the integration, further development or simulation of fiber laser systems as well as consulting during project planning.