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Optical Engineering

Time division multiplexed orbital angular momentum access system
Author(s): Jianyang Shi; Yuan Fang; Nan Chi
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Paper 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.

Paper Details

Date Published: 8 March 2016
PDF: 4 pages
Opt. Eng. 55(3) 036106 doi: 10.1117/1.OE.55.3.036106
Published in: Optical Engineering Volume 55, Issue 3
Show Author Affiliations
Jianyang Shi, Fudan Univ. (China)
Yuan Fang, Fudan Univ. (China)
Nan Chi, Fudan Univ. (China)

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