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
P
Optoelectonic Division, Engineering Department, University of Sannio, Benevento, Italy. pillapie@unisannio.it
Foglia Manzillo
P
P
Giordano
M
M
Korwin-Pawlowski
M L
ML
Bock
W J
WJ
Cusano
A
A
D003198:Computer Simulation; D004867:Equipment Design; D019544:Equipment Failure Analysis; D005336:Fiber Optic Technology / Q000295:instrumentation*; D007368:Interferometry / Q000295:instrumentation*; D008027:Light; D008567:Membranes, Artificial; D008962:Models, Theoretical; D011108:Polymers / Q000737:chemistry; D012031:Refractometry / Q000295:instrumentation*; D012542:Scattering, Radiation; D014159:Transducers
D008567:Membranes, Artificial; D011108:Polymers