Wang, Yanhu
Zhang, Lina
Zhao, Peini
Ge, Shenguang
Yan, Mei
Yu, Jinghua
Funding for this research was provided by:
the program for Taishan Scholer of Shandong province (ts201712048)
National Natural Science Foundation of China (21874055, 51632003)
State Key Laboratory of Advanced Optical Communication Systems and Networks. (No. D17001)
Article History
Received: 12 December 2018
Accepted: 21 March 2019
First Online: 13 April 2019
Compliance with ethical standards
: The author(s) declare that they have no competing interests.