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Title: A comparison of the spectral properties of high temperature annealed long period gratings inscribed by fs laser, uv and fusion-arc
Authors: Kalli, Kyriacos 
Allsop, Thomas D P 
Webb, David J. 
Keywords: Liquefied petroleum gas
Spectrum analysis
Diffraction gratings
Issue Date: 2006
Publisher: Spie Digital Library
Source: Reliability of Optical Fiber Components, Devices, Systems, and Networks III,3-4 April 2006,Strasbourg,France
Abstract: Long period gratings have been inscribed in standard single mode fibre using a fs laser system, a fusion arc and a UV laser and a comparative study carried out of their thermal behaviour. The fs laser induced gratings can survive temperatures in excess of 800°C, however the inscription process can induce considerable birefringence within the device. Annealing studies have been carried out showing that below 600°C, all three grating types show a blue shift in their room temperature resonance wavelengths following cyclic heating, while above 600°C, the UV and arc induced LPGs exhibit a red shift, with the fs LPG showing an even stronger blue shift. High temperature annealing is also shown to considerably reduce the birefringence induced by the fs inscription process.
DOI: 10.1117/12.663000
Rights: © 2006 SPIE.
Appears in Collections:Δημοσιεύσεις σε συνέδρια/Conference papers

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