Open AccessHigh-order dispersion in photonic crystal waveguides
Author(s) -
Solomon Assefa,
Yurii A. Vlasov
Publication year - 2007
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.15.017562
Subject(s) - optics , dispersion (optics) , interferometry , slow light , refractive index , photonic crystal , materials science , group velocity , phase (matter) , physics , quantum mechanics
High-order dispersion in the slow-light regime of photonic crystal (PhC) waveguides was measured by utilizing integrated Mach-Zehnder interferometer (MZI) structures, and compared with theoretical results obtained from 3D plane-wave calculations. Highly accurate measurements of group-velocity dispersion (GVD), third-order dispersion (TOD) and fourth-order dispersion (FOD) at high group-index (n(g)) values were enabled by minimizing external phase-distortions and increasing signal-to-noise ratio in the MZI. The experimental results for GVD, TOD, and FOD parameters at n(g) approximately 100 were approximately 10(2)ps(2)/mm, approximately 10(4)ps(3)/mm, and approximately 10(5)ps(3)/mm respectively. The results emphasize the importance of taking into consideration the effect of TOD and FOD on pulse broadening in the slow-light regime.