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Orbital angular momentum beams generated by passive dielectric phase masks and their performance in a communication link

Wang, Zhe and Yan, Yan and Arbabi, Amir and Xie, Guodong and Liu, Cong and Zhao, Zhe and Ren, Yongxiong and Li, Long and Ahmed, Nisar and Willner, Asher J. and Arbabi, Ehsan and Faraon, Andrei and Bock, Robert and Ashrafi, Solyman and Tur, Moshe and Willner, Alan E. (2017) Orbital angular momentum beams generated by passive dielectric phase masks and their performance in a communication link. Optics Letters, 42 (14). pp. 2746-2749. ISSN 0146-9592. https://resolver.caltech.edu/CaltechAUTHORS:20170810-075926507

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Abstract

We demonstrate the generation of orbital angular momentum (OAM) beams using high-efficient polarization-insensitive phase masks. The OAM beams generated by the phase masks are characterized in terms of their tolerance to misalignment (lateral displacement or tilt) between the incident beam and phase mask. For certain scenarios, our results show that (a) when the tilt angle is within the range of −20 to +20  deg, the crosstalk among modes is less than −15  dB; and (b) lateral displacement of 0.3 mm could cause a large amount of power leaked to adjacent modes. Finally, OAM beams generated by the phase masks are demonstrated over a two-channel OAM-multiplexing link, each channel carrying a 40 Gbit/s data stream. An optical signal-to-noise-ratio (OSNR) penalty of ∼1 dB is measured without crosstalk at the bit error rate (BER) of 3.8 × 10^(−3). With crosstalk, an OSNR penalty of <1.5  dB<1.5  dB is observed at the same BER.


Item Type:Article
Related URLs:
URLURL TypeDescription
https://doi.org/10.1364/OL.42.002746DOIArticle
https://www.osapublishing.org/ol/abstract.cfm?uri=ol-42-14-2746PublisherArticle
ORCID:
AuthorORCID
Arbabi, Amir0000-0001-8831-7552
Arbabi, Ehsan0000-0002-5328-3863
Faraon, Andrei0000-0002-8141-391X
Additional Information:© 2017 Optical Society of America. Received 29 May 2017; revised 15 June 2017; accepted 16 June 2017; posted 19 June 2017. Vannevar Bush Faculty Fellowship Program sponsored by the Basic Research Office of the Assistant Secretary of Defense for Research and Engineering and funded by the Office of Naval Research (ONR) (N00014-16-1-2813); National Science Foundation (NSF) (IIP-1622777); NxGen Partners; California Institute of Technology (Caltech) President’s and Director’s fund.
Funders:
Funding AgencyGrant Number
Office of Naval Research (ONR)N00014-16-1-2813
NSFIIP-1622777
NxGen PartnersUNSPECIFIED
Caltech President’s FundUNSPECIFIED
JPL Director's FundUNSPECIFIED
Issue or Number:14
Classification Code:OCIS codes: (060.2605) Free-space optical communication; (080.4865) Optical vortices; (060.4230) Multiplexing
Record Number:CaltechAUTHORS:20170810-075926507
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20170810-075926507
Official Citation:Zhe Wang, Yan Yan, Amir Arbabi, Guodong Xie, Cong Liu, Zhe Zhao, Yongxiong Ren, Long Li, Nisar Ahmed, Asher J. Willner, Ehsan Arbabi, Andrei Faraon, Robert Bock, Solyman Ashrafi, Moshe Tur, and Alan E. Willner, "Orbital angular momentum beams generated by passive dielectric phase masks and their performance in a communication link," Opt. Lett. 42, 2746-2749 (2017)
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:80055
Collection:CaltechAUTHORS
Deposited By: Ruth Sustaita
Deposited On:10 Aug 2017 16:42
Last Modified:03 Oct 2019 18:27

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