Generation of a cylindrically symmetric, polarized laser beam with narrow linewidth and fine tunability

Toru Hirayama, Yuichi Kozawa, Takahiro Nakamura, Shunichi Sato

Research output: Contribution to journalArticle

32 Citations (Scopus)

Abstract

We demonstrated a generation of cylindrically symmetric, polarized laser beams with narrow linewidth and fine tunability. Since an LP11 mode beam in an optical fiber is a superposition of an HE21 (hybrid) mode beam and a TE01 or TM01 mode beam, firstly, a higher order transverse (TEM01 or TEM10) mode laser beam with narrow linewidth and fine tunability was generated from an external cavity diode laser (ECDL) in conjunction with a phase adjustment plate. Then the beam generated was passed in a two mode optical fiber. A doughnut shaped laser beam with the cylindrically symmetric polarization (a radially or azimuthally polarized beam) was obtained by properly adding stress-induced birefringence in the optical fiber.

Original languageEnglish
Pages (from-to)12839-12845
Number of pages7
JournalOptics Express
Volume14
Issue number26
DOIs
Publication statusPublished - 2006 Dec 25

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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