摘要
设计实验实现了基于级联调制器抽运源的1.7μm波段宽带光源。采用连续光源和级联调制器组合的方式,在反常色散区域抽运1 km的高非线性色散位移光纤,产生了超连续谱。经过光纤波分复用器的滤波后,得到了峰值波长为1748.9 nm、输出功率约为22 dBm、20 dB光谱范围为1.6~2μm、相应的谱宽约为419 nm的宽带光源。通过增加Sagnac滤波器,得到了频率周期为2.5 nm、强度周期为9.5 dB的多波长宽带光源。此外,分析了抽运功率、波长及重复频率对超连续谱展宽的影响。
We designed and experimentally implemented a broadband light-source at 1.7 μm based on a cascaded-modulator pumping source. We generated supercontinuum by pumping a 1 km highly nonlinear dispersion-shifted fiber in the anomalous dispersion region by using a continuous light source combined with a cascaded-modulator. After filtering by using an optical fiber wavelength-division multiplexer, we obtained a broadband light source with a peak wavelength of 1748.9 nm, an output power of approximately 22 dBm, a 20 dB spectral range of 1.6-2 μm, and a corresponding spectral width of approximately 419 nm. By adding the Sagnac filter, a multi-wavelength broadband light source with a frequency period of 2.5 nm and an intensity period of 9.5 dB was obtained. In addition, we analyzed the effects of pump power, wavelength, and repetition rate on supercontinuum broadening.
作者
吴迪
张鹏
李晓燕
王大帅
贺振兴
张欣梦
陈俊达
王天枢
张立中
佟首峰
Wu Di;Zhang Peng;Li Xiaoyan;Wang Dashuai;He Zhenxing;Zhang Xinmeng;Chen Junda;Wang Tianshu;Zhang Lizhong;Tong Shoufeng(National and Lucal Joint Engineering Re sea rch Center of Space Optoelectronics Technology ,Changchun University of Science and Technology , Changchun , Jilin 130022, China;College of Optoelectronics Engineering , Changchun University of Science and Technology ,Changchun , Jilin 130022, China;College of Electronical and Information Engineering , Changchun University of Science and Technology ,Changchun , Jilin 130022, China)
出处
《中国激光》
EI
CAS
CSCD
北大核心
2019年第5期383-389,共7页
Chinese Journal of Lasers
基金
国家自然科学基金(61705019,91438204)
吉林省青年人才托举工程项目(2017~2018)
吉林省优秀青年人才基金(20170520161JH)
吉林省自然科学基金(20180101338JC)
