Beam-shaping is essential for any kind of laser application. Assembly technologies for beam-shaping subassemblies are subject to intense research and development activities and their technical feasibility has been proven in recent years while economic viability requires more efficient engineering tools for process planning and production ramp up of complex assembly tasks for micro-optical systems. The work presented in this paper aims for significant reduction of process development and production ramp up times for the automated assembly of micro-optical subassemblies for beam-collimation and beam-tilting. The approach proposed bridges the gap between the product development phase and the realization of automation control through integration of established software tools such as optics simulation and CAD modeling as well as through introduction of novel software tools and methods to efficiently describe active alignment strategies. The focus of the paper is put on the methodological approach regarding the engineering of assembly processes for beam-shaping micro-optics and the formal representation of assembly objectives similar to representation in mechanical assemblies. Main topic of the paper is the engineering methodology for active alignment processes based on the classification of optical functions for beam-shaping optics and corresponding standardized measurement setups including adaptable alignment algorithms. The concepts are applied to industrial use-cases: (1) integrated collimation module for fast- and slow-axis and (2) beam-tilting subassembly consisting of a fast-axis collimator and micro-lens array. The paper concludes with an overview of current limitations as well as an outlook on the next development steps considering adhesive bonding processes
Hochleistungsdiodenlaser benötigen mikrooptische Komponenten Aufgrund ihres hohen Wirkungsgrades sowie ihrer kompakten Bauform sind Diodenlaser heute Basisbausteine technischer Systeme in den unterschiedlichsten Branchen. Entscheidend für die anwendungsspezifische Performance der Hochleistungsdiodenlaser ist ihre Abstrahlcharakteristik. Um möglichst viel Licht zu verwerten und die Richtungsabhängigkeit der Strahlqualität zu minimieren, erfordern Anwendungen im Hochleistungsbereich den Einsatz mikrooptischer Komponenten. Mikrooptiken sind Schlüsselelemente für die grundlegende Funktion des Hochleistungsdiodenlasers und im Besonderen für dessen Effizienz. Über die funktionsbestimmenden Charakteristika hinausgehend sind für den Laserhersteller weitere Eigenschaften von Interesse: die hohe Präzision und Reproduzierbarkeit der Mikrooptiken in der Serie sowie die Option eines monolithischen Aufbaus.
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