Open AccessStructural modification in fused silica by a femtosecond fiber laser at 1558 nm
Author(s) -
Takayuki Tamaki,
Wataru Watanabe,
Hirokazu Nagai,
Makoto Yoshida,
Junji Nishii,
Kazuyoshi Itoh
Publication year - 2006
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.14.006971
Subject(s) - materials science , femtosecond , optics , refractive index , laser , diffraction grating , fiber laser , wavelength , pulse duration , diffraction , diffraction efficiency , optical fiber , grating , optoelectronics , physics
We report on structural modification in fused silica by a novel commercial femtosecond fiber laser with a fundamental wavelength of 1558 nm. The refractive-index change was induced by laser pulses at a repetition rate of 173 kHz and pulse duration of 870 fs. The refractive index change with a magnitude of 1.2 x 10(-3) was estimated from the diffraction efficiencies of an internal grating.