Simulation analysis of the diode laser spectral beam combining Jing Li, Wenbin Qin, Yinhua Cao, Yuntao Qiu, Youqiang Liu, Xiaodi Zeng and Zhiyong Wang MATEC Web Conf., 189 (2018) 11007 Published online: 10 August 2018 DOI: 10.1051/matecconf/201818911007