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Changjing Bao
Researcher at University of Southern California
Publications - 164
Citations - 4586
Changjing Bao is an academic researcher from University of Southern California. The author has contributed to research in topics: Dispersion (optics) & Frequency comb. The author has an hindex of 21, co-authored 148 publications receiving 3386 citations. Previous affiliations of Changjing Bao include Huazhong University of Science and Technology.
Papers
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Journal ArticleDOI
Optical communications using orbital angular momentum beams
Alan E. Willner,Hao Huang,Yan Yan,Yongxiong Ren,Nisar Ahmed,Guodong Xie,Changjing Bao,Long Li,Yinwen Cao,Zhe Zhao,Jian Wang,Martin P. J. Lavery,Moshe Tur,Siddharth Ramachandran,Andreas F. Molisch,Nima Ashrafi,Solyman Ashrafi +16 more
TL;DR: In this article, the authors review recent progress in OAM beam generation/detection, multiplexing/demultiplexing, and its potential applications in different scenarios including free-space optical communications, fiber-optic communications, and RF communications.
Journal ArticleDOI
High-capacity millimetre-wave communications with orbital angular momentum multiplexing
Yan Yan,Guodong Xie,Martin P. J. Lavery,Hao Huang,Nisar Ahmed,Changjing Bao,Yongxiong Ren,Yinwen Cao,Long Li,Zhe Zhao,Andreas F. Molisch,Moshe Tur,Miles J. Padgett,Alan E. Willner +13 more
TL;DR: This work demonstrates a 32-Gbit’s−1 millimetre-wave link over 2.5 metres with a spectral efficiency of ~16 bit s− 1 Hz−1 using four independent orbital–angular momentum beams on each of two polarizations, and shows an 8-Gbits−1 link containing two orbital angular momentum beams with crosstalk less than −12.5 dB.
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Adaptive-optics-based simultaneous pre- and post-turbulence compensation of multiple orbital-angular-momentum beams in a bidirectional free-space optical link
Yongxiong Ren,Guodong Xie,Hao Huang,Nisar Ahmed,Yan Yan,Long Li,Changjing Bao,Martin P. J. Lavery,Moshe Tur,Mark A. Neifeld,Robert W. Boyd,Jeffrey H. Shapiro,Alan E. Willner +12 more
TL;DR: In this article, the authors demonstrate simultaneous pre-and post-turbulence compensation of multiple OAM beams, in a bidirectional free-space optical communications link, using a single adaptive optics (AO) system.
Journal ArticleDOI
Nonlinear conversion efficiency in Kerr frequency comb generation.
Changjing Bao,Lin Zhang,Andrey B. Matsko,Yan Yan,Zhe Zhao,Guodong Xie,Anuradha M. Agarwal,Lionel C. Kimerling,Jurgen Michel,Lute Maleki,Alan E. Willner +10 more
TL;DR: The efficiency of ring microresonator-based mode-locked frequency combs under different dispersion conditions is investigated and it is found that the efficiency degrades with growth of the comb spectral width and is inversely proportional to the number of comb lines.
Journal ArticleDOI
Adaptive optics compensation of multiple orbital angular momentum beams propagating through emulated atmospheric turbulence.
Yongxiong Ren,Guodong Xie,Hao Huang,Changjing Bao,Yan Yan,Nisar Ahmed,Martin P. J. Lavery,Baris I. Erkmen,Samuel J. Dolinar,Moshe Tur,Mark A. Neifeld,Miles J. Padgett,Robert W. Boyd,Jeffrey H. Shapiro,Alan E. Willner +14 more
TL;DR: The experimental results indicate that the correction pattern obtained from the Gaussian probe beam could be used to simultaneously compensate multiple turbulence-distorted OAM beams with different orders.