TY - Journal of Beijing University of Posts and Telecommunications A1 - LIU Tao, SUN Chun-yang, ZHU Cong, WANG Ping-ping, FANG Xin-xin T1 - Flattop Broadband Wavelength Converters Based on Cascaded Sum+Difference Frequency Generation Y1 - 2019-11-25 00:00:00.0 JF - Journal of Beijing University of Posts and Telecommunications JO - Journal of Beijing University of Posts and Telecommunications SP - 127 EP - 132 VL - 42 IS - 5 UR - {https://journal.bupt.edu.cn/EN/10.13190/j.jbupt.2018-311} N1 - 10.13190/j.jbupt.2018-311 ER -