supported by the National Natural Science Foundation of China(Nos.61377081 and 61007035);the Chen Guang project by Shanghai Municipal Education Commission and Shanghai Education Development Foundation(No.12CG48);the Science and Technology Commission of Shanghai Municipality(STCSM)(No.14511105602)
This Letter presents intrinsic Fabry–Perot interferometers in the fiber tapers fabricated by the femtosecond laser micromachining technique. The sensing of temperatures as high as 1000°C based on the fiber device is...