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Proceedings Paper

Design of a miniaturized solid state laser for automated assembly
Author(s): Max C. Funck; Jan Dolkemeyer; Valentin Morasch; Peter Loosen
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Paper Abstract

A miniaturized solid state laser for marking applications has been developed featuring novel assembly strategies to reduce size, cost and assembly effort. Design and setup have been laid out with future automation of the assembly in mind. Using a high precision robot the optical components composing the laser system are directly placed on a planar substrate providing accurate positioning and alignment within a few microns. No adjustable mounts for mirrors and lenses are necessary, greatly simplifying the setup. Consisting of either a ND:YAG or a Nd:YVO4 crystal pumped with a fiber coupled diode laser, a q-switch for pulse generation and a beam expander the entire assembly is confined in a 100ml space and delivers 4 W of continuous output power at 1.064 μm with an efficiency greater than 40%. Pulse lengths of 10-20 ns and repetition rates of up to 150 kHz have been obtained with an acousto-optic modulator. In addition, a custom designed electro-optic modulator with integrated high voltage switch has been realized. A supply unit for the entire system, including scanner and water cooling, is integrated in a 19" industrial chassis and can be operated via a graphical user interface on a standard personal computer.

Paper Details

Date Published: 19 May 2010
PDF: 10 pages
Proc. SPIE 7721, Solid State Lasers and Amplifiers IV, and High-Power Lasers, 77210X (19 May 2010); doi: 10.1117/12.855017
Show Author Affiliations
Max C. Funck, RWTH Aachen (Germany)
Jan Dolkemeyer, RWTH Aachen (Germany)
Valentin Morasch, RWTH Aachen (Germany)
Peter Loosen, RWTH Aachen (Germany)
Fraunhofer Institute for Laser Technology (Germany)

Published in SPIE Proceedings Vol. 7721:
Solid State Lasers and Amplifiers IV, and High-Power Lasers
Thomas Graf; Gerhard G. Paulus; Jacob I. Mackenzie; Vincent Bagnoud; Catherine Le Blanc; Helena Jelinkov√°, Editor(s)

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