Open AccessTwo-dimensional coherent superposition of blue-shifted signals from an array of highly nonlinear waveguiding wires in a photonic-crystal fiber
Author(s) -
Minglie Hu,
Yanfeng Li,
Li Chai,
Qirong Xing,
Lyubov V. Doronina,
А. А. Иванов,
Chingyue Wang,
А. М. Желтиков
Publication year - 2008
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.16.011176
Subject(s) - optics , photonic crystal fiber , superposition principle , materials science , photonic crystal , interference (communication) , optical fiber , optoelectronics , physics , telecommunications , channel (broadcasting) , quantum mechanics , computer science
Frequency-shifted dispersive optical waves generated as a result of soliton dynamics of 30-fs Ti: sapphire-laser pulses in an array of waveguiding wires, implemented on a platform of a photonic-crystal fiber (PCF), are shown to produce regular stable interference patterns with high visibility, indicating a high coherence of frequency-shifted fields. For a hexagonal array of waveguides built into a silica PCF, the field intensity at the main peak of a six-beam interference pattern was found to be a factor of 22 higher than the intensity of a frequency-shifted signal from an individual waveguide in the array and 3.7 times higher than the field intensity attainable through an incoherent superposition of the same fields.