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 new type of writing system of array fiber grating was designed to realize the writing of different wavelength array fiber gratings on 8-core ribbon fiber. Its basic principle is as follows: The use of specially designed fiber clip with a fiber holder, the use of electrically controlled displacement platform for the whole fiber to exert a tensile force to adjust the wavelength, one by one exposure, and the use of scanning method Hamming apodization. Using the above system, an array Bragg grating grating with a 3 d B bandwidth of 0.2 nm, a wavelength separation of 0.5 nm, a wavelength deviation of less than ± 0.05 nm and a reflectance of 80% -85% was achieved. This process has a high degree of automation and flexible grating parameters.