Third party funded individual grant
Acronym: InnoBurst
Start date : 01.06.2024
End date : 30.11.2025
We see a need for robust, ultra-fast lasers for measurement technology. The goal is an Nd:YAG laser with repetition rates of at least 20 kHz and pulse energies of 50 mJ at 355 nm. Only Innolas Laser GmbH from Krailingen has a concept for implementing these special requirements. The idea is based on experience with Q-switch-operated Nd:YAG lasers. Contrary to laser theory assumptions, residual energy remains in the resonator after the Q-switch opens, which can be quickly amplified again with suitable pump technology. The scientific description of laser physics is still pending for the technical exploitation of the phenomenon. New simulation models are to be used for this purpose, which also allow thermal lens effects in the laser head to be taken into account. Experimental validation of the laser design is also essential for technology development. It is crucial to be able to measure each individual pulse of the high-frequency burst in terms of time and energy. As part of the project, an energy measuring head based on atom layer thermopile (ALTP) technology is to be developed, which promises energy measurement in the MHz range—for which there is currently no sensor system available on the market. We see a very realistic possibility for a start-up here. Finally, the project aims to develop the entire laser measurement system using the example of research into sustainable aviation fuels.
The demands on pulse frequency/energy of laser systems in technology, industry, and science are constantly increasing. The project goal is to develop an Nd:YAG laser with repetition rates of at least 20 kHz and pulse energies of 50 mJ at 355 nm. The development is based on a concept idea from Innolas Laser GmbH based on experience with Q-switch lasers. The idea and the laser system are to be described in simulation models. In addition, an ALTP sensor for energy measurement in the MHz range is being developed. Laser/measurement technology will be tested experimentally.