15 kW efficient CW Nd:YAG planar waveguide MOPA laser Wang, Juntao ; Wu, Zhenhai ; Su, Hua ; Zhou, Tangjian ; Lei, Jun ; Lv, Wenqiang ; He, Jing ; Xu, Liu ; Chen, Yuejian ; Wang, Dan ; Tong, Lixin ; Hu, Hao ; Gao, Qingsong ; Tang, Chun Abstract Publication: Optics Letters Pub Date: August 2017 DOI: 10.1364/OL.42.003149 Bibcode: 2017OptL...42.3149W