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Real-time determination of laser beam quality by modal decomposition

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Schmidt,  Oliver A.
International Max Planck Research School, Max Planck Institute for the Science of Light, Max Planck Society;
Russell Division, Max Planck Institute for the Science of Light, Max Planck Society;

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Citation

Schmidt, O. A., Schulze, C., Flamm, D., Bruening, R., Kaiser, T., Schroeter, S., et al. (2011). Real-time determination of laser beam quality by modal decomposition. OPTICS EXPRESS, 19(7), 6741-6748. doi:10.1364/OE.19.006741.


Cite as: http://hdl.handle.net/11858/00-001M-0000-002D-6A09-1
Abstract
We present a real-time method to determine the beam propagation ratio M-2 of laser beams. The all-optical measurement of modal amplitudes yields M-2 parameters conform to the ISO standard method. The experimental technique is simple and fast, which allows to investigate laser beams under conditions inaccessible to other methods. (C) 2011 Optical Society of America