1. Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan 430074, Hubei, P. R. China
2. CSG HOLDING CO., LTD., CSG Building, No. 1, Industrial 6th road, Mechants Street, Nanshan District, Shenzhen, P. R. China
3. Optics Valley Laboratory, Wuhan, Hubei 430074, P. R. China