摘要
本文对 15 5 0 nm光纤光栅在纵向拉伸应力和侧向拉伸应力作用下 Bragg波长的偏移特性进行了实验研究。当纵向拉伸应力加至 3.6 0 N (36 7.6 0 g)时 ,得到了 5 .0 2 nm的调谐范围。这可能是在相同应力作用下 ,目前所报道的最好结果。此外 ,还对光纤光栅弯曲所导致的其 Bragg波长的迁移特性进行了实验研究 ,并比较了对光纤光栅段添加涂覆层前后的调谐情况 ,得到了最大为 3.0
WT5”BZ]:In this paper,the effects of strain on the Bragg wavelength of fiber grating are analyzed,The strain induced Bragg wavelength shift of a 1 550 nm fiber grating has been investigated experimentally by observing its transmission spectrum and a shift up to 5.02 nm has been achieved.The possibilities of further improvement of the tuning range and the relevant device applications are discussed.We also investigated the bend induced Bragg wavelength shift of fiber grating,and a shift up to 3.02 nm has been achieved. [WT5”HZ]
出处
《光电子．激光》
EI
CAS
CSCD
2000年第1期23-25,共3页
Journal of Optoelectronics·Laser
基金
国家"八六三"计划资助项目
国家自然科学基金!( 6962 5 10 1)
教育部留学回国人员科研启动基金
邮电部中青年科技基金
