500 kHz高速扫频光源的研制  

Development of 500 kHz High-Speed Swept Source

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)

机构地区：[1]天津大学精密仪器与光电子工程学院,天津300072 [2]珠海光库科技股份有限公司,广东珠海519080

出　　处：《光学学报》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)。

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.

关 键 词：激光光学 扫频光源 光纤法布里-珀罗滤波器 环形腔 相干长度 

分 类 号：TN242[电子电信—物理电子学]