Title :
Investigations on the characteristics of point-by-point CO2 laser induced long-period grating on optical fiber
Author :
Chong, Joo Hin ; Shum, Ping ; Hartono, Haryono ; Aleta, Yohana
Author_Institution :
Sch. of Electr. & Electron. Eng., Nanyang Technol. Univ., Singapore
Abstract :
An effective, simple, and low cost fabrication of Long-period fiber gratings (LPFGs) using point-by-point method by CO2 laser was investigated and demonstrated. The B-Ge codoped fiber was used to produce a peak attenuation loss of at least 20 dB with period number of 17. Monitoring on the variation of spectral responses with the change of temperatures in the range of 25°C to 250°C had been observed. Below 100°C, the spectral response was nearly stable. An approximate sensitivity of 0.0186 nm/°C was obtained in 100°C to 160°C temperature range. It exhibited a double sensitivity response to approximately 0.0378 nm/°C in the 170°C to 250°C range.
Keywords :
boron; carbon compounds; diffraction gratings; germanium; optical fibre amplifiers; optical fibre dispersion; optical fibre fabrication; optical fibre losses; semiconductor doping; 100 to 160 degC; 170 to 250 degC; 25 to 250 degC; B-Ge; B-Ge codoped fiber; CO2; CO2 laser; long-period optical fiber grating; peak attenuation loss; point-by-point method; sensitivity response; spectral response monitoring; temperature range; Erbium-doped fiber lasers; Fiber gratings; Fiber lasers; Optical device fabrication; Optical fiber communication; Optical fibers; Resonance; Temperature dependence; Temperature distribution; Temperature sensors;
Conference_Titel :
Information, Communications and Signal Processing, 2003 and Fourth Pacific Rim Conference on Multimedia. Proceedings of the 2003 Joint Conference of the Fourth International Conference on
Print_ISBN :
0-7803-8185-8
DOI :
10.1109/ICICS.2003.1292668
