Transverse mode control by manipulating gain distribution in a Yb:YAG ceramic thin disk

Koki Shimohira, Yuichi Kozawa, Shunichi Sato

Research output: Contribution to journalArticlepeer-review

15 Citations (Scopus)

Abstract

We demonstrated that transverse mode can be controlled by manipulating gain distributioninaYb:YAGceramic thin disk. Several elongated higher order transverse modes of a Hermite-Gaussian beam were observed when a straightline-shaped gain region was created by using a diode laser output from an optical fiber. An orthogonally crossing pair of straight-line-shaped gain regions created with an additional optical fiber output resulted in the generation of a doughnut-shaped Laguerre-Gaussian beam. This implies that easy and quick switching of Hermite-Gaussian and Laguerre-Gaussian beams is possible without mechanical handling.

Original languageEnglish
Pages (from-to)4137-4139
Number of pages3
JournalOptics Letters
Volume36
Issue number21
DOIs
Publication statusPublished - 2011 Nov 1

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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