Kaleidoscope vortex lasers generated from astigmatic cavities with longitudinal-transverse coupling

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3 引文 斯高帕斯(Scopus)

摘要

We propose an efficient and robust method to generate the kaleidoscope vortex beam by employing an astigmatic laser cavity with an extra-cavity cylindrical lens. The kaleidoscope vortex beam is arising from the superposition of Laguerre-Gaussian modes with the longitudinal-transverse coupling effect in the laser cavity. The superposed Laguerre-Gaussian mode leads to the formation of complex phase singularities and implies the participation of different optical orbital angular momentum involved in a single kaleidoscope vortex beam. We experimentally demonstrate that a series of kaleidoscope vortex beams with different symmetry are systematically achieved by using a simple setup. The output power of the laser is dependent on the cavity length. This approach is expected to create high-order optical vortex beams and pave the way for optical entanglement.

原文英語
頁(從 - 到)31464-31473
頁數10
期刊Optics Express
26
發行號24
DOIs
出版狀態已發佈 - 2018 十一月 26

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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