Abstract

All-fiber 6-mode multiplexer composed of two consecutive LP11-mode selective couplers (MSC), two LP21-MSCs and an LP02-MSC is fully characterized by wavelength-swept interferometer technique. The MSCs are fabricated by polished-type fiber couplers coupling LP01 mode of a single mode fiber into a higher-order mode of a few mode fiber. A pair of the mode multiplexers has minimum mode dependent loss of 4 dB and high mode group selectivity of over 15 dB. Mode division multiplexed transmission enabled by the all-fiber mode multiplexers is demonstrated over fiber spans of 117 km employing an in-line multi-mode optical amplifier. 6 modes of 120 Gb/s dual polarization quadrature phase shift keying signals combined with 30 wavelength channels are successfully transmitted.

© 2017 Optical Society of America

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References

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2016 (1)

2015 (2)

2014 (1)

2013 (1)

D. J. Richardson, J. M. Fini, and L. E. Nelson, “Space-division multiplexing in optical fibres,” Nat. Photonics 7(5), 354–362 (2013).
[Crossref]

2012 (2)

Bolle, C.

Burrows, E. C.

Chang, S. H.

Chen, H.

H. Chen, N. K. Fontaine, and R. Ryf, “Transfer matrix characterization of 10-mode mode-selective spatial multiplexers,” in Proceedings of IEEE Photonics Society Summer Topical Meeting (2016), paper ME3.3.
[Crossref]

Chung, H. S.

Denolle, B.

Esmaeelpour, M.

Essiambre, R.

Fini, J. M.

D. J. Richardson, J. M. Fini, and L. E. Nelson, “Space-division multiplexing in optical fibres,” Nat. Photonics 7(5), 354–362 (2013).
[Crossref]

Fontaine, N. K.

Genevaux, P.

Gnauck, A. H.

Guan, B.

Han, C.

Huang, B.

Jian, P.

Kim, B. Y.

Kim, K.

Kim, Y. K.

Labroille, G.

Lee, J. C.

Lee, J. H.

Leon-Saval, S. G.

Li, G.

Lingle, R.

Love, J. D.

McCurdy, A. H.

Morizur, J.-F.

Mumtaz, S.

Nelson, L. E.

D. J. Richardson, J. M. Fini, and L. E. Nelson, “Space-division multiplexing in optical fibres,” Nat. Photonics 7(5), 354–362 (2013).
[Crossref]

Park, K. J.

Peckham, D. W.

Randel, S.

Richardson, D. J.

D. J. Richardson, J. M. Fini, and L. E. Nelson, “Space-division multiplexing in optical fibres,” Nat. Photonics 7(5), 354–362 (2013).
[Crossref]

Riesen, N.

Ryf, R.

Shubochkin, R.

Sierra, A.

Song, K. Y.

Sun, Y.

Treps, N.

Winzer, P. J.

J. Lightwave Technol. (1)

Nat. Photonics (1)

D. J. Richardson, J. M. Fini, and L. E. Nelson, “Space-division multiplexing in optical fibres,” Nat. Photonics 7(5), 354–362 (2013).
[Crossref]

Opt. Express (4)

Opt. Lett. (1)

Other (7)

B. Huang, C. Xia, G. Matz, N. Bai, and G. Li, “Structured directional coupler pair for multiplexing of degenerate modes,” Optical Fiber Communication Conference (OFC), OSA Technical Digest (online) (Optical Society of America, 2013), paper JW2A.25.
[Crossref]

K. Igarashi, K. J. Park, D. Soma, Y. Wakayama, T. Tsuritani, and B. Y. Kim, “All-fiber-based selective mode multiplexer and demultiplexer for six-mode multiplexed signals,” Optical Fiber Communication Conference (OFC), OSA Technical Digest (online) (Optical Society of America, 2016), paper W2A.38.
[Crossref]

R. Ryf, H. Chen, and N. K. Fontaine, A. M. V.-Benitez, J. A.-Lopez, C. Jin, B. Huang, S. H. Chang, B. Ercan, M. B-Astruc, D. Molin, F. Achten, P. Sillard, R. A-Correa, “10-mode mode-multiplexed transmission with inline amplification,” in Proceedings of 42nd European Conference on Optical Communication (ECOC, 2016), paper Tu.2.D.3.

R. Ryf, N. K. Fontaine, H. Chen, A. H. Gnauck, Y. Jung, Q. Kang, J. K. Sahu, S. U. Alam, D. J. Richardson, Y. Sun, and X. Jiang, L. G-Nielsen, R. V. Jensen, and R. Lingle, Jr. “72-Tb/s Transmission over 179-km all-fiber 6-mode span with two cladding pumped in-line amplifiers,” in Proceedings of 41st European Conference on Optical Communication (ECOC, 2015), paper Tu.3.2.2.

H. Chen, R. Ryf, and N. K. Fontaine, A. M. V.-Benitez, J. A.-Lopez, C. Jin, B. Huang, M. B.-Astruc, D. Molin, F. Achten, P. Sillard, R. A.-Correa, “High spectral efficiency mode-multiplexed transmission over 87 km 10-mode fiber,” Optical Fiber Communication Conference (OFC), OSA Technical Digest (online) (Optical Society of America, 2016), paper Th4C.2.

N. K. Fontaine, B. Huang, Z. S. Eznaveh, H. Chen, J. Cang, and B. Ercan, A. V.-Benitez, S. H. Chang, R. Ryf, A. Schulzgen, J. C. A. Zaharias, P. Sillard, C. Gonnet, J. E. A. Lopez, and R. A.-Correa, “Multi-mode optical fiber amplifier supporting over 10 spatial modes,” Optical Fiber Communication Conference (OFC), OSA Technical Digest (online) (Optical Society of America, 2016), paper Th5A.4.

H. Chen, N. K. Fontaine, and R. Ryf, “Transfer matrix characterization of 10-mode mode-selective spatial multiplexers,” in Proceedings of IEEE Photonics Society Summer Topical Meeting (2016), paper ME3.3.
[Crossref]

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Figures (6)

Fig. 1
Fig. 1 (a) All-fiber 6-mode multiplexer (b) all-fiber 6-mode demultiplexer, SMF: single-mode fiber, FMF: few-mode fiber, LOC: lobe orientation controller.
Fig. 2
Fig. 2 Experimental set-up for measuring MDL. (a) wavelength-swept interferometer (WSI) measurement when the mode multiplexer is directly spliced to the mode demultiplexer (b) 6-mode GI fiber is connected between the mode multiplexer and the mode demultiplexer (c) The input and output of multi-mode EDFA is connected to 10-mode fiber and then 6-mode fiber. (d) Measured MDL results. PBC: polarization beam combiner, MM-EDFA: multi-mode Erbium doped fiber amplifier, GI: graded index core.
Fig. 3
Fig. 3 Measured 6☓6 transfer matrix at 193 THz. (a) in the case of Fig. 2(a). (b) in the case of Fig. 2(b). (c) in the case of Fig. 2(c).
Fig. 4
Fig. 4 Mode group selectivity defined as the total intensity ratio between the excited mode group and the other modes.
Fig. 5
Fig. 5 Experimental set-up. TLD: tunable laser diode, DFB: distributed feedback laser, WSS: wavelength selective switch, IQ-Mod.: IQ modulator, DAC: digital to analog converter, PBC: polarization beam combiner, Mux: multiplexer, DeMux: demultiplexer, MM-EDFA: multi-mode Erbium doped fiber amplifier, AOS: acousto-optic switch, WB: wavelength blocker, FMF: few-mode fiber, PD-CRX: polarization diversity-coherent receiver, LO: local oscillator, OSC.: oscilloscope.
Fig. 6
Fig. 6 Measured BER by obtaining over 6 modes of 120 Gb/s DP-QPSK signals after 2 turns of the circulating loop. BER: bit error rate, SD-FEC: soft decision-forward error correction.

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