Open AccessEffectively single-mode all-solid photonic bandgap fiber with large effective area and low bending loss for compact high-power all-fiber lasers
Author(s) -
M. Kashiwagi,
Kunimasa Saitoh,
Katsuhiro Takenaga,
T. Shoji,
Shoichiro Matsuo,
Munehisa Fujimaki
Publication year - 2012
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.20.015061
Subject(s) - materials science , bend radius , optics , photonic crystal fiber , single mode optical fiber , fiber , bending , optoelectronics , fiber laser , mode volume , plastic optical fiber , optical fiber , graded index fiber , photonics , fiber optic sensor , composite material , physics
An effectively single-mode all-solid photonic bandgap fiber with large effective area and low bending loss for compact high-power all-fiber lasers is fully investigated. The pitch dependencies of effective area, bending loss, and effectively single-mode operation are discussed numerically and experimentally. The calculation results indicate that an effectively single-mode all-solid photonic bandgap fiber with an effective area of more than 500 μm(2) and a bending loss of less than 0.1 dB/m at a bending radius of 10 cm can be realized by choosing optimum fiber parameters. In a fabricated effectively single-mode all-solid photonic bandgap fiber with 48.0 μm core, the effective area of 712 μm(2), the effectively single-mode operation, and the bending loss of less than 0.1 dB/m at a bending radius of 10 cm are achieved simultaneously at 1064 nm.