CHEN Shao-juan, LI Yi, YUAN Wen-rui, CHEN Jian-kun, ZHENG Hong-zhu, HAO Ru-long, SUN Yao, TANG Jia-yin, LIU Fei, WANG Xiao-hua, FANG Bao-ying, TONG Guo-xiang, XIAO Han1. Improvement of the Spectral Characteristics of 980nm Semiconductor Laser[J]. Acta Photonica Sinica, 2015, 44(1): 114003