Intra-Cavity Astigmatic Mode Converting VECSEL

Nathan S. Gottesman,Michal L. Lukowski,Jason T. Meyer,Chris Hessenius,Ewan M. Wright,Mahmoud Fallahi

IEEE Photonics Journal（2022）

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摘要

We report the design and demonstration of a vertical external cavity surface emitting laser with intra-cavity astigmatic mode converters. Using a flexible optical pumping scheme Hermite-Gaussian transverse modes were excited at the gain chip and end mirror, and Laguerre-Gaussian transverse modes were observed between the two astigmatic mode converters. Adjusting the flexible pumping scheme allowed for mode order tuning while the laser was operating.

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关键词

Vertical external cavity surface emitting lasers,laser modes,Hermite-Gaussian beams,Laguerre-Gaussian beams,astigmatic mode converters,optical resonators

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