High-power and highly efficient amplification of a radially polarized beam using an Yb-doped double-clad fiber

Shinya Kanazawa, Yuichi Kozawa, Shunichi Sato

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)

Abstract

We demonstrated the amplification of a radially polarized beam by using an Yb-doped double-clad fiber. The output power of the amplified beam reached 21 W at pump power of 30 W. The generation of amplified spontaneous emission was suppressed by applying a seed beam with sufficient power. Although the intensity distribution of the seed beam was well maintained after the amplification, partial transformation of radial polarization to azimuthal polarization was observed.

Original languageEnglish
Pages (from-to)2857-2859
Number of pages3
JournalOptics Letters
Volume39
Issue number10
DOIs
Publication statusPublished - 2014 May 15

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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