Open AccessAnalysis of model coupling in photonic crystal fiber with triangular structure triple-core
Author(s) -
Peng Li,
Zhao Jian-Lin,
Xiaojuan Zhang,
Hou Jianping
Publication year - 2010
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.59.8625
Subject(s) - photonic crystal fiber , coupling (piping) , core (optical fiber) , optics , materials science , fiber , mode coupling , single mode optical fiber , transmission (telecommunications) , coupling coefficient of resonators , wavelength , optical fiber , optoelectronics , physics , telecommunications , computer science , resonator , metallurgy , composite material
The coupled-mode equations in photonics crystal fiber with triangular structure triple-core (TTC-PCF) are achieved based on the coupled-mode theory, thereby the directional coupling between the cores in this structure is numerically studied in detail. The influences of the fiber structure and the incident wavelength on the coupling coefficient, and the effect of the amplitude ratio of the inject beams at the input end on the transfer of energy between the cores are analyzed. From the results, it can follow that continuous modulation of the coupling intensity between the cores can be achieved by changing the amplitude ratio of the inject beams. The coupled-mode theory and the beam propagation method present the results well consistent with each other. The unique coupling transmission performance of the TTC-PCF shows its possible applications in the design and the preparation of coupling strength continuously tunable fiber directional coupler and large mode field fiber lasers.