TY - CHAP
T1 - Causes and mitigation of modal crosstalk in OAM multiplexed optical communication links
AU - Willner, Alan E.
AU - Song, Haoqian
AU - Liu, Cong
AU - Zhang, Runzhou
AU - Pang, Kai
AU - Zhou, Huibin
AU - Hu, Nanzhe
AU - Song, Hao
AU - Su, Xinzhou
AU - Zhao, Zhe
AU - Tur, Moshe
AU - Huang, Hao
AU - Xie, Guodong
AU - Ren, Yongxiong
N1 - Publisher Copyright:
© 2021 Elsevier Inc. All rights reserved.
PY - 2021/1/1
Y1 - 2021/1/1
N2 - There has been a growing interest in orbital angular momentum (OAM) multiplexed communication links because of their potential for high capacity data transmission. However, OAM multiplexed communication links are sensitive to various degradation effects, and one of the key challenges is to compensate for the potential intermodal crosstalk. In this chapter, we review the causes and mitigation techniques for channel crosstalk in OAM multiplexed communication links. Specifically: Channel crosstalk in OAM multiplexed links could be caused by various system and environmental effects, such as atmospheric turbulence, misalignment, and obstructions. Three technical topics for crosstalk mitigation, including adaptive optics, spatial mode manipulation, and digital signal processing are discussed in this chapter. Several works within these topics are presented as examples.
AB - There has been a growing interest in orbital angular momentum (OAM) multiplexed communication links because of their potential for high capacity data transmission. However, OAM multiplexed communication links are sensitive to various degradation effects, and one of the key challenges is to compensate for the potential intermodal crosstalk. In this chapter, we review the causes and mitigation techniques for channel crosstalk in OAM multiplexed communication links. Specifically: Channel crosstalk in OAM multiplexed links could be caused by various system and environmental effects, such as atmospheric turbulence, misalignment, and obstructions. Three technical topics for crosstalk mitigation, including adaptive optics, spatial mode manipulation, and digital signal processing are discussed in this chapter. Several works within these topics are presented as examples.
KW - Crosstalk
KW - Free-space optical communication
KW - Orbital angular momentum
KW - Spatial mode
KW - Turbulence
KW - Vortex beam
UR - http://www.scopus.com/inward/record.url?scp=85126772034&partnerID=8YFLogxK
U2 - 10.1016/B978-0-12-821510-4.00016-9
DO - 10.1016/B978-0-12-821510-4.00016-9
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AN - SCOPUS:85126772034
SP - 259
EP - 289
BT - Structured Light for Optical Communication
PB - Elsevier
ER -