Experimental demonstration of λ/8 DFB semiconductor laser array for 1.3 μm CWDM system  

作　　者：LU LinLin HUANG Long SHI YueChun GUO RenJia LIU Rui LI LianYan LI SiMin CHEN XiangFei 

机构地区：[1]National Laboratory of Microstructures & School of Engineering and Applied Sciences, Nanjing University

出　　处：《Science China(Technological Sciences)》2014年第9期1769-1772,共4页中国科学（技术科学英文版）

基　　金：supported by the National Natural Science Foundation of China(Grant No.61090392);the National Hi-Tech Research and Development Program of China("863"Project)(Grant No.2011AA010300);the Key Programs of the Ministry of Education of China(Grant No.20100091110005)

摘　　要：In this article,we report the first experimental demonstration of an eight-wavelength λ/8 phased-shifted laser array based on the REC technique in the 1.3 μm wavelength domain.Measurement results exhibit good linearity of lasing wavelength with+/-0.35 nm wavelength residual.The SLM property was ensured with SMSRs all larger than 38 dB.Moreover,the directmodulation performance was also tested.The experimental results show that the modulation bandwidth can reach up to 13GHz even at the small injection current of 40 mA and the measured spurious-free dynamic range(SFDR)is up to 87 dB/Hz2/3,which shows good linearity.These measurements show that REC-based λ/8 phased-shifted laser array has good modulation performance and it may find potential application in actual fiber-optic systems.

关 键 词：λ/8 phase shift DFB semiconductor laser array Reconstruction-Equivalent-Chirp （REC） technique 

分 类 号：TN248.4[电子电信—物理电子学] O441[理学—电磁学]