Hybrid photonic crystal fiber sensing of high hydrostatic pressure

Marcos A. R. Franco; Valdir A. Serrão; Tânia R. Pitarello; Arismar Cerqueira S. Jr.

doi:10.1117/12.885961

17 May 2011 Hybrid photonic crystal fiber sensing of high hydrostatic pressure

Marcos A. R. Franco, Valdir A. Serrão, Tânia R. Pitarello, Arismar Cerqueira S. Jr.

Proceedings Volume 7753, 21st International Conference on Optical Fiber Sensors; 775346 (2011) https://doi.org/10.1117/12.885961
Event: 21st International Conference on Optical Fibre Sensors (OFS21), 2011, Ottawa, Canada

Abstract

The opto-mechanical response of Hybrid Photonic Crystal Fiber (HPCF) with Ge-doped inclusions is numerically modeled for high hydrostatic pressure sensing purpose. A typical photonic crystal fiber (PCF) consists of a silica solidcore and a cladding with a hexagonal lattice of air-holes. The HPCF is similar to the regular PCF, but a horizontal line of air-holes is substituted by solid high index rods of Ge-doped silica. The optical guidance in HPCFs is supported combining two physical effects: the modified total internal reflection and the photonic bandgap. In such fibers, the Gedoped inclusions induce residual birefringence. In our analysis, we evaluate the susceptibility of the phase modal birefringence and group birefringence to hydrostatic pressure. The analyses were performed at a photonic bandgap with central wavelength near to 1350 nm. The polarimetric pressure sensitivity is about 10 rad/MPa x m at λ = 1175 nm.

Citation Download Citation

Marcos A. R. Franco, Valdir A. Serrão, Tânia R. Pitarello, and Arismar Cerqueira S. Jr. "Hybrid photonic crystal fiber sensing of high hydrostatic pressure", Proc. SPIE 7753, 21st International Conference on Optical Fiber Sensors, 775346 (17 May 2011); https://doi.org/10.1117/12.885961

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