[1] Richardson D J, Fini J M, Nelson L E. Space-division multiplexing in optical fibres. Nature Photonics, 2013, 7(5): 354–362
[2] Marom D M, Colbourne P D, D’Errico A, Fontaine N K, Ikuma Y, Proietti R, Zong L, Rivas-Moscoso J M, Tomkos I. Survey of photonic switching architectures and technologies in support of spatially and spectrally flexible optical networking. Journal of Optical Communications and Networking, 2017, 9(1): 1–26
[3] Fontaine N K, Ryf R, Chen H, Benitez A V, Guan B, Scott R, Ercan B, Yoo S J B, Grüner-Nielsen L E, Sun Y, Lingle R, Antonio-Lopez E, Amezcua-Correa R. 3030 MIMO transmission over 15 spatial modes. In: Proceedings of Optical Fiber Communication Conference Post Deadline Papers. Los Angeles, California: OSA Publishing, 2015, Th5C.1
[4] Huang B, Fontaine N K, Ryf R, Guan B, Leon-Saval S G, Shubochkin R, Sun Y, Lingle R Jr, Li G. All-fiber mode-groupselective photonic lantern using graded-index multimode fibers. Optics Express, 2015, 23(1): 224–234
[5] Arik S O, Askarov D, Kahn J M. MIMO DSP Complexity in modedivision multiplexing. In: Proceedings of Optical Fiber Communication Conference. Los Angeles, California: OSA Publishing, 2015, Th1D.1
[6] Brunet C, Ung B,Wang L, Messaddeq Y, LaRochelle S, Rusch L A. Design of a family of ring-core fibers for OAM transmission studies. Optics Express, 2015, 23(8): 10553–10563
[7] Ung B, Vaity P, Wang L, Messaddeq Y, Rusch L A, LaRochelle S. Few-mode fiber with inverse-parabolic graded-index profile for transmission of OAM-carrying modes. Optics Express, 2014, 22(15): 18044–18055
[8] Brunet C, Vaity P, Messaddeq Y, LaRochelle S, Rusch L A. Design, fabrication and validation of an OAM fiber supporting 36 states. Optics Express, 2014, 22(21): 26117–26127
[9] Wang L, Nejad R M, Corsi A, Lin J, Messaddeq Y, Rusch L, LaRochelle S. Linearly polarized vector modes: enabling MIMOfree mode-division multiplexing. Optics Express, 2017, 25(10): 11736–11749
[10] Antonelli C, Mecozzi A, Shtaif M, Winzer P J. Random coupling between groups of degenerate fiber modes in mode multiplexed transmission. Optics Express, 2013, 21(8): 9484–9490
[11] Liang J, Mo Q, Fu S, Tang M, Shum P, Liu D. Design and fabrication of elliptical-core few-mode fiber for MIMO-less data transmission. Optics Letters, 2016, 41(13): 3058–3061
[12] Wang L, LaRochelle S. Design of eight-mode polarizationmaintaining few-mode fiber for multiple-input multiple-outputfree spatial division multiplexing. Optics Letters, 2015, 40(24): 5846–5849
[13] Zhao J, Tang M, Oh K, Feng Z, Zhao C, Liao R, Fu S, Shum P P, Liu D. Polarization-maintaining few mode fiber composed of a central circular-hole and an elliptical-ring core. Photonics Research, 2017, 5(3): 261–266
[14] Wang L, Vaity P, Ung B, Messaddeq Y, Rusch L A, LaRochelle S. Characterization of OAM fibers using fiber Bragg gratings. Optics Express, 2014, 22(13): 15653–15661
[15] Nejad MR,Wang L, Lin J, LaRochelle S, Rusch L A. The impact of modal interactions on receiver complexity in OAM fibers. Journal of Lightwave Technology, 2017, 35(21): 4692–4699
[16] Rusch L A, Rad M M, Allahverdyan K, Fazal I, Bernier E. Carrying data on the orbital angular momentum of light. IEEE Communications Magazine, 2018, 56(2): 219–224
[17] Nejad R M, Allahverdyan K, Vaity P, Amiralizadeh S, Brunet C, Messaddeq Y, LaRochelle S, Rusch L A. Mode division multiplexing using orbital angular momentum modes over 1.4 km ring core fiber. Journal of Lightwave Technology, 2016, 34(18): 4252–4258
[18] Parmigiani F, Jung Y, Gruner-Nielsen L, Geisler T, Petropoulos P, Richardson D J. Elliptical core few mode fibers for multiple-input multiple output-free space division multiplexing transmission. IEEE Photonics Technology Letters, 2017, 29(21): 1764–1767
[19] Mirzaei Nejad R, Tavakoli F, Wang L, Guan X, LaRochelle S, Rusch L A. Four-channel RoF transmission over polarization maintaining elliptical ring core fiber. In: Proceedings of IEEE/OSA Optical Fiber Communications Conference (OFC 2018). San Diego, California: OSA Publishing, 2018, p.M4J.6
