Abstract

We demonstrate reconfigurable orbital angular momentum (OAM) and polarization manipulation of OAM- and polarization-multiplexed 100Gbit/s quadrature phase shift keying (QPSK) data channels. Each data channel’s OAM value and its polarization state can be arbitrarily changed by taking advantage of the unique wavefront profile of OAM beams using liquid crystal on silicon-based spatial light modulators. The manipulation operation introduces a power penalty of <1dB for 100Gbit/s QPSK signals.

© 2013 Optical Society of America

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  1. D. J. Richardson, J. M. Fini, and L. E. Nelson, Nat. Photonics 7, 354 (2013).
    [CrossRef]
  2. G. Gibson, J. Courtial, M. Padgett, M. Vasnetsov, V. Pas’ko, S. Barnett, and S. Franke-Arnold, Opt. Express 12, 5448 (2004).
    [CrossRef]
  3. A. M. Yao and M. J. Padgett, Adv. Opt. Photon. 3, 161 (2011).
    [CrossRef]
  4. J. Wang, J.-Y. Yang, I. Fazal, N. Ahmed, Y. Yan, H. Huang, Y. Ren, Y. Yue, S. Dolinar, M. Tur, and A. E. Willner, Nat. Photonics 6, 488 (2012).
    [CrossRef]
  5. N. Bozinovic, Y. Yue, Y. Ren, M. Tur, P. Kristensen, H. Huang, A. E. Willner, and S. Ramachandran, Science 340, 1545 (2013).
    [CrossRef]
  6. Y. Awaji, N. Wada, Y. Toda, and T. Hayashi, in 37th European Conference and Exposition on Optical Communications, OSA Technical Digest (CD) (Optical Society of America, 2011), paper We.10.P1.55.
  7. S. Frisken, S. B. Poole, and G. W. Baxter, Proc. IEEE 100, 1056 (2012).
    [CrossRef]
  8. Y. Yue, N. Ahmed, H. Huang, Y. Yan, Y. Ren, D. Rogawski, and A. E. Willner, in Optical Fiber Communication Conference/National Fiber Optic Engineers Conference 2013, OSA Technical Digest (online) (Optical Society of America, 2013), paper OM2G.1.
  9. D. A. B. Miller, Opt. Express 21, 20220 (2013).
    [CrossRef]
  10. M. D. Feuer, L. E. Nelson, K. S. Abedin, X. Zhou, T. F. Taunay, J. F. Fini, B. Zhu, R. Isaac, R. Harel, G. Cohen, and D. M. Marom, in Optical Fiber Communication Conference/National Fiber Optic Engineers Conference 2013, OSA Technical Digest (online) (Optical Society of America, 2013), paper PDP5B.8.
  11. G. I. Papadimitriou, C. Papazoglou, and A. S. Pomportsis, J. Lightwave Technol. 21, 384 (2003).
    [CrossRef]
  12. G. Li, Adv. Opt. Photon. 1, 279 (2009).
    [CrossRef]
  13. P. Winzer, IEEE Commun. Mag. 48(7), 26 (2010).
    [CrossRef]
  14. X. S. Yao and L. Yan, in Digest of the IEEE/LEOS Summer Topical Meetings (2008).
  15. M. J. Willner, H. Huang, N. Ahmed, G. Xie, Y. Ren, Y. Yan, M. P. J. Lavery, M. J. Padgett, M. Tur, and A. E. Willner, IEEE Photonics Conferences (PHO) 2013 (IEEE, 2013), paper PDP1.

2013 (3)

N. Bozinovic, Y. Yue, Y. Ren, M. Tur, P. Kristensen, H. Huang, A. E. Willner, and S. Ramachandran, Science 340, 1545 (2013).
[CrossRef]

D. J. Richardson, J. M. Fini, and L. E. Nelson, Nat. Photonics 7, 354 (2013).
[CrossRef]

D. A. B. Miller, Opt. Express 21, 20220 (2013).
[CrossRef]

2012 (2)

S. Frisken, S. B. Poole, and G. W. Baxter, Proc. IEEE 100, 1056 (2012).
[CrossRef]

J. Wang, J.-Y. Yang, I. Fazal, N. Ahmed, Y. Yan, H. Huang, Y. Ren, Y. Yue, S. Dolinar, M. Tur, and A. E. Willner, Nat. Photonics 6, 488 (2012).
[CrossRef]

2011 (1)

2010 (1)

P. Winzer, IEEE Commun. Mag. 48(7), 26 (2010).
[CrossRef]

2009 (1)

2004 (1)

2003 (1)

Abedin, K. S.

M. D. Feuer, L. E. Nelson, K. S. Abedin, X. Zhou, T. F. Taunay, J. F. Fini, B. Zhu, R. Isaac, R. Harel, G. Cohen, and D. M. Marom, in Optical Fiber Communication Conference/National Fiber Optic Engineers Conference 2013, OSA Technical Digest (online) (Optical Society of America, 2013), paper PDP5B.8.

Ahmed, N.

J. Wang, J.-Y. Yang, I. Fazal, N. Ahmed, Y. Yan, H. Huang, Y. Ren, Y. Yue, S. Dolinar, M. Tur, and A. E. Willner, Nat. Photonics 6, 488 (2012).
[CrossRef]

Y. Yue, N. Ahmed, H. Huang, Y. Yan, Y. Ren, D. Rogawski, and A. E. Willner, in Optical Fiber Communication Conference/National Fiber Optic Engineers Conference 2013, OSA Technical Digest (online) (Optical Society of America, 2013), paper OM2G.1.

M. J. Willner, H. Huang, N. Ahmed, G. Xie, Y. Ren, Y. Yan, M. P. J. Lavery, M. J. Padgett, M. Tur, and A. E. Willner, IEEE Photonics Conferences (PHO) 2013 (IEEE, 2013), paper PDP1.

Awaji, Y.

Y. Awaji, N. Wada, Y. Toda, and T. Hayashi, in 37th European Conference and Exposition on Optical Communications, OSA Technical Digest (CD) (Optical Society of America, 2011), paper We.10.P1.55.

Barnett, S.

Baxter, G. W.

S. Frisken, S. B. Poole, and G. W. Baxter, Proc. IEEE 100, 1056 (2012).
[CrossRef]

Bozinovic, N.

N. Bozinovic, Y. Yue, Y. Ren, M. Tur, P. Kristensen, H. Huang, A. E. Willner, and S. Ramachandran, Science 340, 1545 (2013).
[CrossRef]

Cohen, G.

M. D. Feuer, L. E. Nelson, K. S. Abedin, X. Zhou, T. F. Taunay, J. F. Fini, B. Zhu, R. Isaac, R. Harel, G. Cohen, and D. M. Marom, in Optical Fiber Communication Conference/National Fiber Optic Engineers Conference 2013, OSA Technical Digest (online) (Optical Society of America, 2013), paper PDP5B.8.

Courtial, J.

Dolinar, S.

J. Wang, J.-Y. Yang, I. Fazal, N. Ahmed, Y. Yan, H. Huang, Y. Ren, Y. Yue, S. Dolinar, M. Tur, and A. E. Willner, Nat. Photonics 6, 488 (2012).
[CrossRef]

Fazal, I.

J. Wang, J.-Y. Yang, I. Fazal, N. Ahmed, Y. Yan, H. Huang, Y. Ren, Y. Yue, S. Dolinar, M. Tur, and A. E. Willner, Nat. Photonics 6, 488 (2012).
[CrossRef]

Feuer, M. D.

M. D. Feuer, L. E. Nelson, K. S. Abedin, X. Zhou, T. F. Taunay, J. F. Fini, B. Zhu, R. Isaac, R. Harel, G. Cohen, and D. M. Marom, in Optical Fiber Communication Conference/National Fiber Optic Engineers Conference 2013, OSA Technical Digest (online) (Optical Society of America, 2013), paper PDP5B.8.

Fini, J. F.

M. D. Feuer, L. E. Nelson, K. S. Abedin, X. Zhou, T. F. Taunay, J. F. Fini, B. Zhu, R. Isaac, R. Harel, G. Cohen, and D. M. Marom, in Optical Fiber Communication Conference/National Fiber Optic Engineers Conference 2013, OSA Technical Digest (online) (Optical Society of America, 2013), paper PDP5B.8.

Fini, J. M.

D. J. Richardson, J. M. Fini, and L. E. Nelson, Nat. Photonics 7, 354 (2013).
[CrossRef]

Franke-Arnold, S.

Frisken, S.

S. Frisken, S. B. Poole, and G. W. Baxter, Proc. IEEE 100, 1056 (2012).
[CrossRef]

Gibson, G.

Harel, R.

M. D. Feuer, L. E. Nelson, K. S. Abedin, X. Zhou, T. F. Taunay, J. F. Fini, B. Zhu, R. Isaac, R. Harel, G. Cohen, and D. M. Marom, in Optical Fiber Communication Conference/National Fiber Optic Engineers Conference 2013, OSA Technical Digest (online) (Optical Society of America, 2013), paper PDP5B.8.

Hayashi, T.

Y. Awaji, N. Wada, Y. Toda, and T. Hayashi, in 37th European Conference and Exposition on Optical Communications, OSA Technical Digest (CD) (Optical Society of America, 2011), paper We.10.P1.55.

Huang, H.

N. Bozinovic, Y. Yue, Y. Ren, M. Tur, P. Kristensen, H. Huang, A. E. Willner, and S. Ramachandran, Science 340, 1545 (2013).
[CrossRef]

J. Wang, J.-Y. Yang, I. Fazal, N. Ahmed, Y. Yan, H. Huang, Y. Ren, Y. Yue, S. Dolinar, M. Tur, and A. E. Willner, Nat. Photonics 6, 488 (2012).
[CrossRef]

Y. Yue, N. Ahmed, H. Huang, Y. Yan, Y. Ren, D. Rogawski, and A. E. Willner, in Optical Fiber Communication Conference/National Fiber Optic Engineers Conference 2013, OSA Technical Digest (online) (Optical Society of America, 2013), paper OM2G.1.

M. J. Willner, H. Huang, N. Ahmed, G. Xie, Y. Ren, Y. Yan, M. P. J. Lavery, M. J. Padgett, M. Tur, and A. E. Willner, IEEE Photonics Conferences (PHO) 2013 (IEEE, 2013), paper PDP1.

Isaac, R.

M. D. Feuer, L. E. Nelson, K. S. Abedin, X. Zhou, T. F. Taunay, J. F. Fini, B. Zhu, R. Isaac, R. Harel, G. Cohen, and D. M. Marom, in Optical Fiber Communication Conference/National Fiber Optic Engineers Conference 2013, OSA Technical Digest (online) (Optical Society of America, 2013), paper PDP5B.8.

Kristensen, P.

N. Bozinovic, Y. Yue, Y. Ren, M. Tur, P. Kristensen, H. Huang, A. E. Willner, and S. Ramachandran, Science 340, 1545 (2013).
[CrossRef]

Lavery, M. P. J.

M. J. Willner, H. Huang, N. Ahmed, G. Xie, Y. Ren, Y. Yan, M. P. J. Lavery, M. J. Padgett, M. Tur, and A. E. Willner, IEEE Photonics Conferences (PHO) 2013 (IEEE, 2013), paper PDP1.

Li, G.

Marom, D. M.

M. D. Feuer, L. E. Nelson, K. S. Abedin, X. Zhou, T. F. Taunay, J. F. Fini, B. Zhu, R. Isaac, R. Harel, G. Cohen, and D. M. Marom, in Optical Fiber Communication Conference/National Fiber Optic Engineers Conference 2013, OSA Technical Digest (online) (Optical Society of America, 2013), paper PDP5B.8.

Miller, D. A. B.

Nelson, L. E.

D. J. Richardson, J. M. Fini, and L. E. Nelson, Nat. Photonics 7, 354 (2013).
[CrossRef]

M. D. Feuer, L. E. Nelson, K. S. Abedin, X. Zhou, T. F. Taunay, J. F. Fini, B. Zhu, R. Isaac, R. Harel, G. Cohen, and D. M. Marom, in Optical Fiber Communication Conference/National Fiber Optic Engineers Conference 2013, OSA Technical Digest (online) (Optical Society of America, 2013), paper PDP5B.8.

Padgett, M.

Padgett, M. J.

A. M. Yao and M. J. Padgett, Adv. Opt. Photon. 3, 161 (2011).
[CrossRef]

M. J. Willner, H. Huang, N. Ahmed, G. Xie, Y. Ren, Y. Yan, M. P. J. Lavery, M. J. Padgett, M. Tur, and A. E. Willner, IEEE Photonics Conferences (PHO) 2013 (IEEE, 2013), paper PDP1.

Papadimitriou, G. I.

Papazoglou, C.

Pas’ko, V.

Pomportsis, A. S.

Poole, S. B.

S. Frisken, S. B. Poole, and G. W. Baxter, Proc. IEEE 100, 1056 (2012).
[CrossRef]

Ramachandran, S.

N. Bozinovic, Y. Yue, Y. Ren, M. Tur, P. Kristensen, H. Huang, A. E. Willner, and S. Ramachandran, Science 340, 1545 (2013).
[CrossRef]

Ren, Y.

N. Bozinovic, Y. Yue, Y. Ren, M. Tur, P. Kristensen, H. Huang, A. E. Willner, and S. Ramachandran, Science 340, 1545 (2013).
[CrossRef]

J. Wang, J.-Y. Yang, I. Fazal, N. Ahmed, Y. Yan, H. Huang, Y. Ren, Y. Yue, S. Dolinar, M. Tur, and A. E. Willner, Nat. Photonics 6, 488 (2012).
[CrossRef]

Y. Yue, N. Ahmed, H. Huang, Y. Yan, Y. Ren, D. Rogawski, and A. E. Willner, in Optical Fiber Communication Conference/National Fiber Optic Engineers Conference 2013, OSA Technical Digest (online) (Optical Society of America, 2013), paper OM2G.1.

M. J. Willner, H. Huang, N. Ahmed, G. Xie, Y. Ren, Y. Yan, M. P. J. Lavery, M. J. Padgett, M. Tur, and A. E. Willner, IEEE Photonics Conferences (PHO) 2013 (IEEE, 2013), paper PDP1.

Richardson, D. J.

D. J. Richardson, J. M. Fini, and L. E. Nelson, Nat. Photonics 7, 354 (2013).
[CrossRef]

Rogawski, D.

Y. Yue, N. Ahmed, H. Huang, Y. Yan, Y. Ren, D. Rogawski, and A. E. Willner, in Optical Fiber Communication Conference/National Fiber Optic Engineers Conference 2013, OSA Technical Digest (online) (Optical Society of America, 2013), paper OM2G.1.

Taunay, T. F.

M. D. Feuer, L. E. Nelson, K. S. Abedin, X. Zhou, T. F. Taunay, J. F. Fini, B. Zhu, R. Isaac, R. Harel, G. Cohen, and D. M. Marom, in Optical Fiber Communication Conference/National Fiber Optic Engineers Conference 2013, OSA Technical Digest (online) (Optical Society of America, 2013), paper PDP5B.8.

Toda, Y.

Y. Awaji, N. Wada, Y. Toda, and T. Hayashi, in 37th European Conference and Exposition on Optical Communications, OSA Technical Digest (CD) (Optical Society of America, 2011), paper We.10.P1.55.

Tur, M.

N. Bozinovic, Y. Yue, Y. Ren, M. Tur, P. Kristensen, H. Huang, A. E. Willner, and S. Ramachandran, Science 340, 1545 (2013).
[CrossRef]

J. Wang, J.-Y. Yang, I. Fazal, N. Ahmed, Y. Yan, H. Huang, Y. Ren, Y. Yue, S. Dolinar, M. Tur, and A. E. Willner, Nat. Photonics 6, 488 (2012).
[CrossRef]

M. J. Willner, H. Huang, N. Ahmed, G. Xie, Y. Ren, Y. Yan, M. P. J. Lavery, M. J. Padgett, M. Tur, and A. E. Willner, IEEE Photonics Conferences (PHO) 2013 (IEEE, 2013), paper PDP1.

Vasnetsov, M.

Wada, N.

Y. Awaji, N. Wada, Y. Toda, and T. Hayashi, in 37th European Conference and Exposition on Optical Communications, OSA Technical Digest (CD) (Optical Society of America, 2011), paper We.10.P1.55.

Wang, J.

J. Wang, J.-Y. Yang, I. Fazal, N. Ahmed, Y. Yan, H. Huang, Y. Ren, Y. Yue, S. Dolinar, M. Tur, and A. E. Willner, Nat. Photonics 6, 488 (2012).
[CrossRef]

Willner, A. E.

N. Bozinovic, Y. Yue, Y. Ren, M. Tur, P. Kristensen, H. Huang, A. E. Willner, and S. Ramachandran, Science 340, 1545 (2013).
[CrossRef]

J. Wang, J.-Y. Yang, I. Fazal, N. Ahmed, Y. Yan, H. Huang, Y. Ren, Y. Yue, S. Dolinar, M. Tur, and A. E. Willner, Nat. Photonics 6, 488 (2012).
[CrossRef]

Y. Yue, N. Ahmed, H. Huang, Y. Yan, Y. Ren, D. Rogawski, and A. E. Willner, in Optical Fiber Communication Conference/National Fiber Optic Engineers Conference 2013, OSA Technical Digest (online) (Optical Society of America, 2013), paper OM2G.1.

M. J. Willner, H. Huang, N. Ahmed, G. Xie, Y. Ren, Y. Yan, M. P. J. Lavery, M. J. Padgett, M. Tur, and A. E. Willner, IEEE Photonics Conferences (PHO) 2013 (IEEE, 2013), paper PDP1.

Willner, M. J.

M. J. Willner, H. Huang, N. Ahmed, G. Xie, Y. Ren, Y. Yan, M. P. J. Lavery, M. J. Padgett, M. Tur, and A. E. Willner, IEEE Photonics Conferences (PHO) 2013 (IEEE, 2013), paper PDP1.

Winzer, P.

P. Winzer, IEEE Commun. Mag. 48(7), 26 (2010).
[CrossRef]

Xie, G.

M. J. Willner, H. Huang, N. Ahmed, G. Xie, Y. Ren, Y. Yan, M. P. J. Lavery, M. J. Padgett, M. Tur, and A. E. Willner, IEEE Photonics Conferences (PHO) 2013 (IEEE, 2013), paper PDP1.

Yan, L.

X. S. Yao and L. Yan, in Digest of the IEEE/LEOS Summer Topical Meetings (2008).

Yan, Y.

J. Wang, J.-Y. Yang, I. Fazal, N. Ahmed, Y. Yan, H. Huang, Y. Ren, Y. Yue, S. Dolinar, M. Tur, and A. E. Willner, Nat. Photonics 6, 488 (2012).
[CrossRef]

Y. Yue, N. Ahmed, H. Huang, Y. Yan, Y. Ren, D. Rogawski, and A. E. Willner, in Optical Fiber Communication Conference/National Fiber Optic Engineers Conference 2013, OSA Technical Digest (online) (Optical Society of America, 2013), paper OM2G.1.

M. J. Willner, H. Huang, N. Ahmed, G. Xie, Y. Ren, Y. Yan, M. P. J. Lavery, M. J. Padgett, M. Tur, and A. E. Willner, IEEE Photonics Conferences (PHO) 2013 (IEEE, 2013), paper PDP1.

Yang, J.-Y.

J. Wang, J.-Y. Yang, I. Fazal, N. Ahmed, Y. Yan, H. Huang, Y. Ren, Y. Yue, S. Dolinar, M. Tur, and A. E. Willner, Nat. Photonics 6, 488 (2012).
[CrossRef]

Yao, A. M.

Yao, X. S.

X. S. Yao and L. Yan, in Digest of the IEEE/LEOS Summer Topical Meetings (2008).

Yue, Y.

N. Bozinovic, Y. Yue, Y. Ren, M. Tur, P. Kristensen, H. Huang, A. E. Willner, and S. Ramachandran, Science 340, 1545 (2013).
[CrossRef]

J. Wang, J.-Y. Yang, I. Fazal, N. Ahmed, Y. Yan, H. Huang, Y. Ren, Y. Yue, S. Dolinar, M. Tur, and A. E. Willner, Nat. Photonics 6, 488 (2012).
[CrossRef]

Y. Yue, N. Ahmed, H. Huang, Y. Yan, Y. Ren, D. Rogawski, and A. E. Willner, in Optical Fiber Communication Conference/National Fiber Optic Engineers Conference 2013, OSA Technical Digest (online) (Optical Society of America, 2013), paper OM2G.1.

Zhou, X.

M. D. Feuer, L. E. Nelson, K. S. Abedin, X. Zhou, T. F. Taunay, J. F. Fini, B. Zhu, R. Isaac, R. Harel, G. Cohen, and D. M. Marom, in Optical Fiber Communication Conference/National Fiber Optic Engineers Conference 2013, OSA Technical Digest (online) (Optical Society of America, 2013), paper PDP5B.8.

Zhu, B.

M. D. Feuer, L. E. Nelson, K. S. Abedin, X. Zhou, T. F. Taunay, J. F. Fini, B. Zhu, R. Isaac, R. Harel, G. Cohen, and D. M. Marom, in Optical Fiber Communication Conference/National Fiber Optic Engineers Conference 2013, OSA Technical Digest (online) (Optical Society of America, 2013), paper PDP5B.8.

Adv. Opt. Photon. (2)

IEEE Commun. Mag. (1)

P. Winzer, IEEE Commun. Mag. 48(7), 26 (2010).
[CrossRef]

J. Lightwave Technol. (1)

Nat. Photonics (2)

D. J. Richardson, J. M. Fini, and L. E. Nelson, Nat. Photonics 7, 354 (2013).
[CrossRef]

J. Wang, J.-Y. Yang, I. Fazal, N. Ahmed, Y. Yan, H. Huang, Y. Ren, Y. Yue, S. Dolinar, M. Tur, and A. E. Willner, Nat. Photonics 6, 488 (2012).
[CrossRef]

Opt. Express (2)

Proc. IEEE (1)

S. Frisken, S. B. Poole, and G. W. Baxter, Proc. IEEE 100, 1056 (2012).
[CrossRef]

Science (1)

N. Bozinovic, Y. Yue, Y. Ren, M. Tur, P. Kristensen, H. Huang, A. E. Willner, and S. Ramachandran, Science 340, 1545 (2013).
[CrossRef]

Other (5)

Y. Awaji, N. Wada, Y. Toda, and T. Hayashi, in 37th European Conference and Exposition on Optical Communications, OSA Technical Digest (CD) (Optical Society of America, 2011), paper We.10.P1.55.

Y. Yue, N. Ahmed, H. Huang, Y. Yan, Y. Ren, D. Rogawski, and A. E. Willner, in Optical Fiber Communication Conference/National Fiber Optic Engineers Conference 2013, OSA Technical Digest (online) (Optical Society of America, 2013), paper OM2G.1.

M. D. Feuer, L. E. Nelson, K. S. Abedin, X. Zhou, T. F. Taunay, J. F. Fini, B. Zhu, R. Isaac, R. Harel, G. Cohen, and D. M. Marom, in Optical Fiber Communication Conference/National Fiber Optic Engineers Conference 2013, OSA Technical Digest (online) (Optical Society of America, 2013), paper PDP5B.8.

X. S. Yao and L. Yan, in Digest of the IEEE/LEOS Summer Topical Meetings (2008).

M. J. Willner, H. Huang, N. Ahmed, G. Xie, Y. Ren, Y. Yan, M. P. J. Lavery, M. J. Padgett, M. Tur, and A. E. Willner, IEEE Photonics Conferences (PHO) 2013 (IEEE, 2013), paper PDP1.

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Figures (8)

Fig. 1.
Fig. 1.

Concept of manipulation showing OAM and polarization can be shifted to any other charge and any other polarization.

Fig. 2.
Fig. 2.

(a) Procedures of the conversion from a polarization-multiplexed signal to an OAM-multiplexed signal. (b) Procedures of the conversion from an OAM-multiplexed signal to a polarization-multiplexed signal.

Fig. 3.
Fig. 3.

(a) Concept of OAM shifting and OAM downconversion. (b) Principle of multiplexing an OAM beam and a non-OAM beam using a hologram. (c) Principle of separating a non-OAM beam from an OAM beam using a hologram.

Fig. 4.
Fig. 4.

Experimental setup. PC: polarization controller. I/Q Mod.: QPSK modulator. EDFA: erbium-doped fiber amplifier. OC: optical coupler. BS: nonpolarization beam splitter. PBS: polarization beam splitter. λ/2: half-wave plate. SLM: spatial light modulator. The inserts on the right panel show that light path ① generates an OAM-multiplexed signal, and light path ② prepares a polarization-multiplexed signal.

Fig. 5.
Fig. 5.

(a) Schematic view of conversion from pol-muxed beams to OAM-muxed beams. (b) Recorded images (intensity profiles) of beam in each step of conversion. (c) Interference patters of OAM beams before and after conversion. (d) Measured BER curves of two output channels after conversion.

Fig. 6.
Fig. 6.

Experimental results. (a1)–(a5) Intensity profiles before and after conversion for five different inputs.

Fig. 7.
Fig. 7.

(a1) and (a2) Measured BER curves after conversion in Figs. 6(a1)and 6(a2). (b1) to (b2) Recovered constellations of each channel after conversion in (a1) and (a2).

Fig. 8.
Fig. 8.

(a) Tolerance of OAM mode spacing in a conversion from OAM-multiplexed signal to a polarization-multiplexed signal. (b) Tolerance of polarization-multiplexed angle in a conversion from polarization-multiplexed signal to an OAM multiplexed signal.

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