Spectral behavior of thin film coated cascaded tapered long period gratings in multiple configuratio
June 27th, 2008 | by admin |Spectral behavior of thin film coated cascaded tapered long period gratings in multiple configurations.
In this work the spectral response of cascaded tapered long period gratings coated by nano-sized polymeric films has been investigated as function of the surrounding medium refractive index (SRI). The investigation was aimed to identify the best configuration in terms of coated/not coated areas in order to fully benefit of the SRI sensitivity enhancement due to the modal transition mechanism of nano-coated long period gratings while preserving the fringes visibility.
Pilla P, Foglia Manzillo P, Giordano M, Korwin-Pawlowski ML, Bock WJ, Cusano A.
Optoelectonic Division, Engineering Department, University of Sannio, Benevento, Italy. pillapie@unisannio.it