Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1541421 | Optics Communications | 2007 | 4 Pages |
Abstract
We propose and demonstrate a new technique for intensity-based fiber temperature sensing based on long-period fiber grating pairs having different temperature coefficients and an absorptive core mode blocker placed between the two gratings. The constructed fiber sensor exhibits a bandpass filter response that varies with the temperature. A light-emitting diode is used as the input light source to convert the wavelength shift into an optical intensity change. A photodetector is used to measure the output intensity as a temperature-encoded signal.
Related Topics
Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
Hajime Sakata, Hisashi Ito,