TITLE

Optical far-field and near-field observations of the strong angular dispersion in a lithium niobate photonic crystal superprism designed for double (passive and active) demultiplexer applications

AUTHOR(S)
Diziain, Séverine; Amet, Julien; Baida, Fadi I.; Bernal, Maria-Pilar
PUB. DATE
December 2008
SOURCE
Applied Physics Letters;12/29/2008, Vol. 93 Issue 26, p261103
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We report on a lithium niobate photonic crystal (PC) superprism device designed for double demultiplexer applications. In fact, the strong angular beam steering cannot only be reached by passively tuning the wavelength but it can also be actively controlled by the Pockels effect enhanced due to the slow light phenomenon. The performance of the passive device is demonstrated by measuring its transmission properties. Optical far field and near-field experiments, corroborated by two-dimensional finite difference time domain (2D-FDTD) calculations, exhibit an angular dispersion of 1.5°/nm. A value as high as 4.3°/nm is expected by improving the PC design as supported by 2D-FDTD simulation.
ACCESSION #
36054119

 

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