Citation:
Sarfraz Khaliq, Stephen W James and Ralph P Tatam; Enhanced sensitivity fibre optic long period grating temperature sensor. Measurement Science and Technolgy, 2002, Vol. 13, No. 5, pp792-795
Abstract:
Surrounding a long period grating, fabricated in a standard optical fibre, with a material with a high thermo-optic coefficient enhances the temperature sensitivity of a long period grating. Temperature sensitivities as high as 19nm/°C are reported over a temperature range of 1.1°. The temperatures at which the LPG exhibits enhanced sensitivity may be tailored by a suitable choice of material.