Generation of cylindrical vector beams and optical vortex by two acoustically induced fiber gratings with orthogonal vibration directions

Keyan Wei, Wending Zhang, Ligang Huang, Dong Mao, Feng Gao, Ting Mei, Jianlin Zhao

Research output: Contribution to journalArticlepeer-review

65 Scopus citations

Abstract

Mode coupling from the fundamental vector mode (HE11 x) to the cylindrical vector beams (CVBs) and optical vortex beams (OVBs) of a few-mode fiber excited by two acoustic flexural waves with orthogonal perturbations is achieved by using a composite acoustic transducer. The HE11 x mode is converted to TM01 and TE01 modes, which have radial and azimuthal polarizations, by using the lowest-order acoustic flexural modes of F11 x and F11 y, respectively. Furthermore, HE11 x mode can also be converted to the ± 1-order OVBs of HE21 even ± iHE21 odd through the combined acoustic modes of F11 x ± iF11 y. This technique provides a useful way of generating CVBs and OVBs in optical fiber with conveniently electrically-controlled mode conversion characteristics.

Original languageEnglish
Pages (from-to)2733-2741
Number of pages9
JournalOptics Express
Volume25
Issue number3
DOIs
StatePublished - 6 Feb 2017

Fingerprint

Dive into the research topics of 'Generation of cylindrical vector beams and optical vortex by two acoustically induced fiber gratings with orthogonal vibration directions'. Together they form a unique fingerprint.

Cite this