All-digital pulse generator for gradually modulated semiconductor laser Song, Zhiyuan ; Feng, Li ; Zhu, Shaolan ; He, Haodong ; Gao, Cunxiao ; Niu, Linquan Abstract Publication: Chinese Optics Letters Pub Date: 2011 DOI: 10.3788/COL201109.s10306 Bibcode: 2011ChOpL...9S0306S