- About
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The Global ETD Search service is a free service for researchers
to find electronic theses and dissertations. This service is
provided by the
Networked Digital Library of Theses and Dissertations.
Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
Search results
Showing 1 to 10 of 49 (0.008 seconds)| 1 |
An analysis of fibre optic interferometer configurations for optical coherence tomography applicationsBeddows, Ruth January 2003 (has links)
No description available.
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The use of optics underwaterThomas, Andrew James January 2002 (has links)
No description available.
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Novel optical fibre based pulse sources and applicationsKennedy, Richard Eoin January 2006 (has links)
No description available.
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Linear and non-linear measurements in optical fibresKoch, Frank January 2002 (has links)
No description available.
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Nonlinear optics in specialty optical fibresDe Matos, Christiano Jose Santiago January 2004 (has links)
No description available.
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Structural and spectroscopic aspects Er-ion doped tellurite glasses and fibresJoshi, Purushottam January 2005 (has links)
No description available.
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Development of low optical loss chalcogenide glass fibres for mid-infrared transmissionSavage, Shaun January 2005 (has links)
No description available.
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Refractive index modifications in optical fibres and the inscription of fibre Bragg gratings using 157nm laser lightJohnson, Anne Marie January 2005 (has links)
No description available.
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Pulsed laser interactions with protective polymer coatings of optical fibresWhitehead, David James January 2005 (has links)
No description available.
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Grating devices in polymer optical fibreJohnson, Ian Paul January 2012 (has links)
This thesis presents the fabrication of fibre Bragg gratings (FBGs) and long period gratings (LPGs) in polymer optical fibre (POF). Possible fabrication techniques were discussed to fabricate FBGs in polymer optical fibre including a detailed description of the phase mask inscription technique used to fabricate FBGs in both single and multi mode microstructured polymer optical fibre (mPOF). Complementing the fabrication of polymer optical fibre Bragg gratings (POFBGs), a technique has been developed to permanently splice POF to silica optical fibre with the use of an optical adhesive. This allowed for the fabricated POFBGs to be characterised away from the optical table, allowing for application specific characterisation. Furthermore Bragg gratings have been fabricated in polymer POF with a Bragg response within the 800nm spectral region. Within this spectral region, POF predominantly manufactured from PMMA experiences considerably smaller attenuation losses when compared to the attenuation losses within the 1550nm spectral region. The effect of thermally annealing fabricated POFBGs has been studied. This included demonstrating the ability to tune the Bragg wavelength of a POFBG sensor to a desired wavelength. Thermal annealing has also been used to manufacture wavelength division multiplexed sensors with the use of a single phase mask. Finally POFBGs have been fabricated in Topas Cyclic Olefin Copolymer. Fabrication of Bragg gratings within this copolymer allowed for the first demonstration of near immunity to relative humidity whilst monitoring changes in temperature of the environment the POFBG sensor was in. Bragg gratings fabricated in the Topas copolymer demonstrated sensitivity to relative humidity which was 65 times less than that of a PMMA based POFBG sensor. This decrease in sensitivity has the potential to significantly reduce the potential of cross sensitivity to relative humidity whilst being employed to monitor measurands such as temperature and axial strain.
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