Temperature Compensation of Long Period Fiber Grating with Negative Strain Coefficient
A passive temperature-compensating package of Long Period Fiber Grating (LPFG) was designed based on its negative strain coefficient. LPFG was pasted on the substrate material, such as copper and Plexiglas, under tension. The strain induced by the thermal expansion of substrate material was used for temperature compensating. The experimental results showed that the mounted grating on copper exhibited lower temperature sensitivity (about 78pm/°C), compared with uncompensated gTating(about 118pm/°C). But the transmission spectrum waveform of the mounted grating on Plexiglas changed. It was demonstrated that this package could improve the wavelength stability of LPFG when appropriated substrate material was chosen.
temperature compensation long period fiber grating negative strain coefficient
Wei Wang Bao ju Zhang Xiao hui Yin
College of Physics and Electronic Information, Tianjin Normal University, Tianjin, China College of Physics and Electronic Information, Tianjin Normal iversity, Tianjin, China
国际会议
湘潭
英文
124-127
2011-07-19（万方平台首次上网日期，不代表论文的发表时间）