APACHE - Very high gain and energy lasers at high medium power
Developing a strategic technological brick for laser systems combining very high amplification gains and high energy, compatible with high medium power.
APACHE (Active Plane Amplification Controlled by Heating Electrodes) is a collaborative R&D project led by ALPhANOV and the CEA. Its objective is to demonstrate the feasibility of a concept of free space amplification, with very high gain and high medium power, for the generation of short pulses in an energy range of 10-100mJ. The subject of the development of this amplifier, the technological brick, is supplied by a wide-mode fibre source, and will be integrable in an ultra-compact and robust format. The challenge of mastering beam quality involves the validation of a new process for actively controlling distortions of thermomechanical origin. The potential applications cover a broad spectrum of needs for the micro-machining industry, as well as for the scientific and medical fields.
Development of elementary calculation tools for global laser and thermo-mechanical sizing, with definition and choice of components.
Table-top mock-up for measurement arrangement to demonstrate feasibility of optical architecture, the active distortion control process, as well as the evaluation of performance limits and associated compromises.
Functionalization of the doped medium at the heart of the system.
Following the preliminary validation phase, integration of a prototype demonstrator for qualification with partners. If the expected performance is met, this demonstrator could constitute an object of evaluation by potential customers.