Experimental characterization of a 400 Gbit/s orbital angular momentum multiplexed free-space optical link over 120 m

Yongxiong Ren; Zhe Wang; Peicheng Liao; Long Li; Guodong Xie; Hao Huang; Zhe Zhao; Yan Yan; Nisar Ahmed; Asher Willner; Martin P.J. Lavery; Nima Ashrafi; Solyman Ashrafi; Robert Bock; Moshe Tur; Ivan B. Djordjevic; Mark A. Neifeld; Alan E. Willner

doi:10.1364/OL.41.000622

Experimental characterization of a 400 Gbit/s orbital angular momentum multiplexed free-space optical link over 120 m

Yongxiong Ren, Zhe Wang, Peicheng Liao, Long Li, Guodong Xie, Hao Huang, Zhe Zhao, Yan Yan, Nisar Ahmed, Asher Willner, Martin P.J. Lavery, Nima Ashrafi, Solyman Ashrafi, Robert Bock, Moshe Tur, Ivan B. Djordjevic, Mark A. Neifeld, Alan E. Willner

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161 Scopus citations

Abstract

We experimentally demonstrate and characterize the performance of a 400-Gbit/s orbital angular momentum (OAM) multiplexed free-space optical link over 120 m on the roof of a building. Four OAM beams, each carrying a 100-Gbit/s quadrature-phase-shift-keyed channel are multiplexed and transmitted. We investigate the influence of channel impairments on the received power, intermodal crosstalk among channels, and system power penalties. Without laser tracking and compensation systems, the measured received power and crosstalk among OAM channels fluctuate by 4.5 dB and 5 dB, respectively, over 180 s. For a beam displacement of 2 mm that corresponds to a pointing error less than 16.7 μrad, the link bit error rates are below the forward error correction threshold of 3.8 × 10^-3for all channels. Both experimental and simulation results show that power penalties increase rapidly when the displacement increases.

Original language	English (US)
Pages (from-to)	622-625
Number of pages	4
Journal	Optics letters
Volume	41
Issue number	3
DOIs	https://doi.org/10.1364/OL.41.000622
State	Published - Feb 1 2016

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

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Ren, Y., Wang, Z., Liao, P., Li, L., Xie, G., Huang, H., Zhao, Z., Yan, Y., Ahmed, N., Willner, A., Lavery, M. P. J., Ashrafi, N., Ashrafi, S., Bock, R., Tur, M., Djordjevic, I. B., Neifeld, M. A., & Willner, A. E. (2016). Experimental characterization of a 400 Gbit/s orbital angular momentum multiplexed free-space optical link over 120 m. Optics letters, 41(3), 622-625. https://doi.org/10.1364/OL.41.000622

Ren, Y, Wang, Z, Liao, P, Li, L, Xie, G, Huang, H, Zhao, Z, Yan, Y, Ahmed, N, Willner, A, Lavery, MPJ, Ashrafi, N, Ashrafi, S, Bock, R, Tur, M, Djordjevic, IB, Neifeld, MA & Willner, AE 2016, 'Experimental characterization of a 400 Gbit/s orbital angular momentum multiplexed free-space optical link over 120 m', Optics letters, vol. 41, no. 3, pp. 622-625. https://doi.org/10.1364/OL.41.000622

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abstract = "We experimentally demonstrate and characterize the performance of a 400-Gbit/s orbital angular momentum (OAM) multiplexed free-space optical link over 120 m on the roof of a building. Four OAM beams, each carrying a 100-Gbit/s quadrature-phase-shift-keyed channel are multiplexed and transmitted. We investigate the influence of channel impairments on the received power, intermodal crosstalk among channels, and system power penalties. Without laser tracking and compensation systems, the measured received power and crosstalk among OAM channels fluctuate by 4.5 dB and 5 dB, respectively, over 180 s. For a beam displacement of 2 mm that corresponds to a pointing error less than 16.7 μrad, the link bit error rates are below the forward error correction threshold of 3.8 × 10-3for all channels. Both experimental and simulation results show that power penalties increase rapidly when the displacement increases.",

author = "Yongxiong Ren and Zhe Wang and Peicheng Liao and Long Li and Guodong Xie and Hao Huang and Zhe Zhao and Yan Yan and Nisar Ahmed and Asher Willner and Lavery, {Martin P.J.} and Nima Ashrafi and Solyman Ashrafi and Robert Bock and Moshe Tur and Djordjevic, {Ivan B.} and Neifeld, {Mark A.} and Willner, {Alan E.}",

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AU - Ren, Yongxiong

AU - Wang, Zhe

AU - Liao, Peicheng

AU - Li, Long

AU - Xie, Guodong

AU - Huang, Hao

AU - Zhao, Zhe

AU - Yan, Yan

AU - Ahmed, Nisar

AU - Willner, Asher

AU - Lavery, Martin P.J.

AU - Ashrafi, Nima

AU - Ashrafi, Solyman

AU - Bock, Robert

AU - Tur, Moshe

AU - Djordjevic, Ivan B.

AU - Neifeld, Mark A.

AU - Willner, Alan E.

PY - 2016/2/1

Y1 - 2016/2/1

N2 - We experimentally demonstrate and characterize the performance of a 400-Gbit/s orbital angular momentum (OAM) multiplexed free-space optical link over 120 m on the roof of a building. Four OAM beams, each carrying a 100-Gbit/s quadrature-phase-shift-keyed channel are multiplexed and transmitted. We investigate the influence of channel impairments on the received power, intermodal crosstalk among channels, and system power penalties. Without laser tracking and compensation systems, the measured received power and crosstalk among OAM channels fluctuate by 4.5 dB and 5 dB, respectively, over 180 s. For a beam displacement of 2 mm that corresponds to a pointing error less than 16.7 μrad, the link bit error rates are below the forward error correction threshold of 3.8 × 10-3for all channels. Both experimental and simulation results show that power penalties increase rapidly when the displacement increases.

AB - We experimentally demonstrate and characterize the performance of a 400-Gbit/s orbital angular momentum (OAM) multiplexed free-space optical link over 120 m on the roof of a building. Four OAM beams, each carrying a 100-Gbit/s quadrature-phase-shift-keyed channel are multiplexed and transmitted. We investigate the influence of channel impairments on the received power, intermodal crosstalk among channels, and system power penalties. Without laser tracking and compensation systems, the measured received power and crosstalk among OAM channels fluctuate by 4.5 dB and 5 dB, respectively, over 180 s. For a beam displacement of 2 mm that corresponds to a pointing error less than 16.7 μrad, the link bit error rates are below the forward error correction threshold of 3.8 × 10-3for all channels. Both experimental and simulation results show that power penalties increase rapidly when the displacement increases.

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Experimental characterization of a 400 Gbit/s orbital angular momentum multiplexed free-space optical link over 120 m

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