James, Stephen W.Tatam, Ralph P.Twin, AndrewBateman, RodNoonan, Paul2012-12-102012-12-102003-08-01Stephen W. James, Ralph P. Tatam, Andrew Twin, Rod Bateman and Paul Noonan; Cryogenic Temperature Response Of Fibre Optic Long Period Gratings. Measurement Science and Technology, 2003, Vol. 14 Iss. 8, pp 1409-14110957-0233http://dx.doi.org/10.1088/0957-0233/14/8/329http://dspace.lib.cranfield.ac.uk/handle/1826/1406The thermal response of the attenuation bands of an optical fibre long period grating was monitored over a temperature range of 4.2–280 K. A linear dependence of the central wavelength of the band, of gradient 0.2 nm K-1, was observed over the range 77–280 K. A measurable wavelength shift was observed at temperatures as low as 20 K.en-UKfibre optic sensorfibre gratinglong period gratingtemperaturecryogenicArticle