摘要
基于半导体光放大器和高速光纤法布里-珀罗滤波器,搭建了一个用于产生高速扫频激光的短环形腔。滤波器从长波到短波扫描时,关闭半导体光放大器的偏置电流,可以获得50%占空比的扫频激光。借助交织器,可以获得占空比为100%的扫频激光。再利用二级半导体光放大器,可以进一步提高扫频激光的输出功率。经测试,本扫频激光的扫描频率为500 kHz,中心波长为1550 nm,扫描范围达到67 nm,有效相干长度为6.5 mm,平均输出功率大于20 mW。
Based on a semiconductor optical amplifier(SOA)and a high-speed fiber Fabry-Perot filter,we built a short ring cavity for producing high-speed swept laser.During the filter sweeping from the long wavelength to the short wavelength,if the bias current of the SOA was switched off,we could acquire a swept laser with a duty cycle of 50%.With the help of an interleaver,the swept laser with a duty cycle of 100%could be obtained.Furthermore,after a second SOA was applied,the output power of the swept laser was further improved.Finally,it was experimentally demonstrated that the swept laser featured a swept frequency of 500 kHz,a center wavelength of 1550 nm,a sweep range of 67 nm,an effective coherence length of 6.5 mm,and an average output power of greater than 20 mW.
作者
陆龙钊
张大鹏
徐雨薇
卢建南
孙先胜
王兴龙
许克畇
Lu Longzhao;Zhang Dapeng;Xu Yuwei;Lu Jiannan;Sun Xiansheng;Wang Xinglong;Hsu Kevin(School of Precision Instruments and Optoelectronics Engineering,Tianjin University,Tianjin 300072,China;Advanced Fiber Resources(Zhuhai),Ltd.,Zhuhai,Guangdong 519080,China)
出处
《光学学报》
EI
CAS
CSCD
北大核心
2021年第4期213-216,共4页
Acta Optica Sinica
基金
“珠江人才计划”引进领军人才项目(2016LJ06D531)。