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14 February 2008 Green laser modules to fit laser projection out of your pocket
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Abstract
Among enabling key components for mobile laser projection, the green laser plays an outstanding role: We present green laser modules based on frequency doubled optically pumped semiconductor disk lasers. In these lasers with twofold conversion, from 808nm over 1060nm to 530nm, active semiconductor components and second harmonic generation have to be carefully optimized to realize good efficiency at moderate output powers. The concept was developed not only to meet power and efficiency targets, but also to provide simple operation and control by pump diode current. The latest concept targets green output powers of more than 50mW at wall plug efficiencies >7%, limiting total electrical power consumption to less than 1W. Consequent use of micro optical components allows for a package volume of less than 0.5cm3.
© (2008) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
U. Steegmüller, M. Kühnelt, H. Unold, T. Schwarz, R. Schulz, S. Illek, I. Pietzonka, H. Lindberg, M. Schmitt, and U. Strauss "Green laser modules to fit laser projection out of your pocket", Proc. SPIE 6871, Solid State Lasers XVII: Technology and Devices, 687117 (14 February 2008); https://doi.org/10.1117/12.764657
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