期刊
OPTICS EXPRESS
卷 26, 期 23, 页码 29895-29905出版社
OPTICAL SOC AMER
DOI: 10.1364/OE.26.029895
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资金
- National Natural Science Foundation of China (NSFC) [61490715, 11690031, 61622510, 61575224, 11690030]
- National Basic Research Program of China [2014CB340000]
Orbital angular momentum (OAM) multiplexing has emerged as an important method to increase the communication capacities in future optical information technologies. In this work, we demonstrate a silicon integrated OAM (de)multiplexer with a very simple structure. By simply tapping the evanescent wave of two different whispering gallery modes rotating inside a multimodal micro-ring resonator, four in-plane waveguide modes are converted to four free-space vector OAM beams with high mode purity. We further demonstrate chip-to-chip OAM multiplexing transmission using a pair of silicon devices, which shows low-level mode crosstalk and favorable link performance. (c) 2018 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
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