Lasers, Fiber Optics, and Communications

Time division multiplexed orbital angular momentum access system

[+] Author Affiliations
Jianyang Shi, Yuan Fang, Nan Chi

Fudan University, Department of Communication Science and Engineering, Key Laboratory for Information Science of Electromagnetic Waves (MoE), Information School, No. 220, Handan Road, Shanghai 200433, China

Opt. Eng. 55(3), 036106 (Mar 08, 2016). doi:10.1117/1.OE.55.3.036106
History: Received November 18, 2015; Accepted February 16, 2016
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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 1×109. Results show that the proposed time division multiplexed OAM access system is suitable for future broadband access network.

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© 2016 Society of Photo-Optical Instrumentation Engineers

Citation

Jianyang Shi ; Yuan Fang and Nan Chi
"Time division multiplexed orbital angular momentum access system", Opt. Eng. 55(3), 036106 (Mar 08, 2016). ; http://dx.doi.org/10.1117/1.OE.55.3.036106


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