摘要
设计了一种新型阵列光纤光栅的刻写系统,实现了8芯带状光纤上不同波长阵列光纤光栅的刻写。其基本原理如下：利用专门设计的带纤夹具夹持带纤,采用电控位移平台对带纤整体施加拉力来调节波长,逐根曝光,并采用扫描写入的方法进行汉明切趾。利用以上系统,实现了3 d B带宽为0.2 nm、波长间隔为0.5 nm、波长偏差小于±0.05 nm、反射率为80%~85%的阵列布拉格光纤光栅刻写。此工艺自动化程度高,光栅参数灵活可调。
A kind of novel fabrication system of array optical fiber gratings is designed, which can make multi- wavelength array optical fiber gratings on 8-core ribbon optical fiber. The principle of this system is as follows： the ribbon optical fiber is clamped by the specially-designed fixture; tension is applied on ribbon optical fiber to control and change the resonant wavelength by electrically controlled displacement platform; optical fibers are exposed under ultraviolet （UV） laser one by one; Hamming apodization is employed at the same time. Array optical fiber Bragg gratings with 0.2 nm bandwidth, wavelength interval less than 0.5 nm, wavelength deviation less than ＋0.05 nm and reflectivigy from 80% to 85% on ribbon optical fiber are successfully obtained by the above system. This kind of technology is easy to adjust the parameters of the optical fiber gratings and has more automation.
出处
《光学学报》
EI
CAS
CSCD
北大核心
2015年第10期37-42,共6页
Acta Optica Sinica
基金
国家自然科学基金(61275093
61205084)
河北省自然科学基金(F2015203277)
关键词
光纤光学
光纤光栅
多波长
带状光纤
fiber optics
fiber gratings
multi-wavelength
ribbon optical fiber
