Polymer saturable absorber materials in the 1.5 μm band using poly-methyl-methacrylate and polystyrene with single-wall carbon nanotubes and their application to a femtosecond laser

Masataka Nakazawa, Seiji Nakahara, Toshihiko Hirooka, Masato Yoshida, Toshikuni Kaino, Kyoji Komatsu

Research output: Contribution to journalArticle

87 Citations (Scopus)

Abstract

We report saturable absorber materials in the 1.5 μm band that consist of poly-methyl-methacrylate (PMMA) and polystyrene (PS) polymers with single-wall carbon nanotubes (SWNTs). A very uniform dispersion of SWNT in PMMA and PS polymers has been realized by using chlorobenzene or tetrahydrofuran as a dispersion solvent. These materials, which are as thick as 1 mm, are easily optically polished on both surfaces. This was difficult to achieve with previous thin-film materials. By incorporating PMMA/SWNT as a saturable absorber, a 171 fs pulse is successfully generated in a passively mode-locked fiber laser.

Original languageEnglish
Pages (from-to)915-917
Number of pages3
JournalOptics Letters
Volume31
Issue number7
DOIs
Publication statusPublished - 2006 Apr 1

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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