摘要
为获得较大展宽量的光纤器件,在相位掩模版刻写技术的基础上设计并制作了两种啁啾光纤布拉格光栅(CFBG)展宽器。基于相位掩模版刻写技术的原理和CFBG的色散补偿理论,提出了两种展宽器的制作方法,并优化了刻写光路,获得了高反射率、大反射带宽的CFBG。通过拉力传感器控制CFBG的反射谐振波长,通过改进刻写方式制作了大色散量的CFBG级联展宽器和大反射带宽的CFBG串联展宽器。搭建了两种展宽器的测试光源,通过直接测量的方式得到CFBG级联展宽器所提供的展宽量约为345 ps,这与理论结果相符;通过正、反接的方式间接推算了CFBG串联展宽器所提供的展宽量约为278.7 ps,这小于理论结果。
To obtain fiber devices with large stretched amount,we designed and fabricated two kinds of chirped fiber Bragg grating(CFBG) stretchers with the phase mask inscription technology.According to the theories of the phase mask inscription technology and dispersion compensation with CFBGs,the fabrication methods for the two stretchers were proposed and the optical paths were optimized to obtain CFBGs with high reflectivity and wide reflection bandwidth.The reflective resonance wavelength of CFBG was controlled by the tension sensor,and the inscription method was improved.A cascaded CFBG stretcher with large dispersion and a series CFBG stretcher with large reflection bandwidth were fabricated.Fiber sources were then built to test the two kinds of stretchers.The stretched amount provided by the cascaded CFBG stretcher was directly measured to be 345 ps,which was consistent with the theoretical result.The stretched amount provided by the series CFBG stretcher was indirectly calculated through direct and reverse connections.The calculated result,being about 278.7 ps,was smaller than the theoretical result.
作者
王鸣晓
李平雪
许杨涛
李舜
姚传飞
Wang Mingxiao;Li Pingxue;Xu Yangtao;Li Shun;Yao Chuanfei(Institute of Ultrashort Pulsed Laser and Application,Faculty of Materials and Manufacturing,Beijing University of Technology,Beijing 100124,China)
出处
《光学学报》
EI
CAS
CSCD
北大核心
2022年第7期21-31,共11页
Acta Optica Sinica
基金
国家自然科学基金(62005004)
国家博士后科学基金(212423)
北京市自然科学基金重点项目(KZ201910005006)
北京市自然科学基金(4204091)。
