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Efficient formation of a high-quality beam from a pure high-order Hermite–Gaussian mode

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Abstract

We present a relatively simple method for efficiently transforming a single high-order mode into a nearly Gaussian beam of much higher quality. The method is based on dividing the mode into equal parts that are then combined coherently. We illustrate the method by transforming a Hermite–Gaussian (1, 0) mode with Mx2=3 into a nearly Gaussian beam with Mx2=1.045. Experimental results are presented and compared with theoretical results.

© 2002 Optical Society of America

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