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

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)5043-5054
Number of pages12
JournalOptics Express
Volume29
Issue number4
DOIs
Publication statusPublished - 2021 Feb 15

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

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