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Updated: Aug 10, 2026

The Generation of Higher-order Laguerre-Gauss Optical Beams for High-precision Interferometry
Published on: August 12, 2013
Intracavity coherent addition of single high-order modes
A A Ishaaya1, V Eckhouse, L Shimshi
1Department of Physics of Complex Systems, Weizmann Institute of Science, Rehovot 76100, Israel. amiel.ishaaya@weizmann.ac.il
Abstract:
We report on efficient intracavity coherent addition of several single high-order mode distributions in a multichannel laser resonator. The phase locking and coherent addition is achieved by using an intracavity interferometric beam combiner. The principle, configuration, and experimental results with pulsed Nd:YAG Laguerre-Gaussian TEM01 and TEM02 laser beam distributions are presented. The results reveal more than 95% combining efficiency with a nearly pure high-order mode output beam distribution in both free-running and Q-switched operation.
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