Analytical modeling of the gas-filling dynamics in photonic crystal fibers
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We present a novel distributed sensing technique that allows for the observation of Brillouin gain spectral distribution and acoustic decay time in photonic crystal fiber as well as in standard single-mode fiber. ...
We address the concept of virtual transparency in optical fibres and its application to dynamic range extension in distributed sensors. A sensor featuring 100 km measurement range with 2 meter resolution is experimentally demonstrated. ...
Optical Society of America2011
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Bragg gratings with reflectivity > 93% were fabricated in Bi-Al co-doped H-2-loaded optical fibers. Average index changes as high as +2.5x10(-3) were obtained. Positive core stress changes indicate a compaction contribution to the total index change. ...
This paper presents helpful expressions predicting the filling time of gaseous species inside photonic crystal fibres. Based on the theory of diffusion, our gas-filling model can be applied to any given fibre geometry or length by calculating diffusion coe ...
The International Society for Optical Engineering2010
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Water sorption of 100% changes the POFBG peak wavelength by 8.1 nm (at 1.54 micrometer). The temperature sensitivity depends on water content and is -10, -34, and -138 pm/K in dry, wet, and ambient conditions. ...
2010
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We present a novel distributed sensing technique that makes possible the observation of Brillouin gain spectral distribution and acoustic decay time in photonic crystal fiber as well as in standard single-mode fiber. ...
IEEE2010
Photonic Crystal Fibers (PCF) play a crucial role for fundamental investigations such as acousto-optical interactions as well as for applications, such as distributed sensors. One limiting factor for these experiments is the fiber inhomogeneity owing to th ...
2010
Optical fiber materials with broad-band gain in the visible or in the telecommunication window are of great interest for optical communication or the biomedical domain in order to built integrated tunable lasers, amplifiers, ultra-short pulse lasers, or br ...
The ubiquitous role of optical fibers in modern photonic systems has stimulated research to realize slow and fast light devices directly in this close-to-perfect transmission line. Recent progress in developing optically-controlled delays in optical fibers ...
SPIE2009
Development of standards and guidelines for performance specifications and testing for fibre optic sensors has been discussed since the mid-nineties of the last century in the scientific community as well as in the industry. Very global standards for the u ...
