Selection rule for cavity configurations to generate cylindrical vector beams with low beam quality factor

CHIH HSIANG CHUANG, CHEN YU HO, YU CHI HSIAO, CHI PIN CHIU, MING DAR WEI

研究成果: Article同行評審

摘要

Considering the birefringence of the gain medium, we propose a selection rule for designing cavity configurations that enable the generation of radially and azimuthally polarized laser beams with a low beam quality factor, i.e., high beam quality. Using this rule, all stable regions can support cylindrical vector (CV) beams by using the position of the end mirror as the tuning parameter to vary the cavity configuration. Such cavity configurations tend to sustain the fundamental or lowest-order CV beam, and radially or azimuthally polarized beams can be obtained simply by varying the tuning parameter. Based on experimental measurements of the beam quality factor and polarization characteristics, we verified our analyses and simulations for a four-element laser system.

原文English
頁(從 - 到)5043-5054
頁數12
期刊Optics Express
29
發行號4
DOIs
出版狀態Published - 2021 二月 15

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

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