8 March 2016 Time division multiplexed orbital angular momentum access system
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Abstract
We propose and experimentally demonstrate time division multiplexed orbital angular momentum (OAM) access system to increase transmission capacity and spectral efficiency. In this system, data carried on different time tributaries share the same OAM mode. Multiple time division multiplexed OAM modes are multiplexed to realize two-dimensional (time dimension and OAM dimension) multiplexing. Therefore, the capacity and spectral efficiency of the access system will increase. The orthogonality between optical time division multiplexing (OTDM) and OAM techniques is also verified in our experiment. In a proof-of-concept experiment, 2×5-Gbps return-to-zero signal over OAM mode +4 is transmitted and investigated. The bit error ratio performance after transmission in this system can be smaller than 1×10−9. Results show that the proposed time division multiplexed OAM access system is suitable for future broadband access network.
© 2016 Society of Photo-Optical Instrumentation Engineers (SPIE)
Jianyang Shi, Yuan Fang, Nan Chi, "Time division multiplexed orbital angular momentum access system," Optical Engineering 55(3), 036106 (8 March 2016). https://doi.org/10.1117/1.OE.55.3.036106 . Submission:
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