Abstract

Adaptive optics is used to compensate for modal dispersion in digital transmission through multimode fiber (MMF). At the transmitter, a spatial light modulator (SLM) controls the launched field pattern. An estimate of intersymbol interference (ISI) caused by modal dispersion is formed at the receiver and fed back to the transmitter, where the SLM is adjusted to minimize ISI. Error-free transmission of 10Gbits non-return-to-zero signals through standard 50μm graded-index MMFs up to 11.1km long is demonstrated. It is shown that a single SLM can compensate for modal dispersion across a 600GHz bandwidth.

© 2005 Optical Society of America

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  1. L. Raddatz, I. H. White, D. G. Cunningham, and M. C. Nowell, IEEE Photonics Technol. Lett. 10, 534 (1998).
    [CrossRef]
  2. K. M. Patel and S. E. Ralph, IEEE Photonics Technol. Lett. 14, 393 (2002).
    [CrossRef]
  3. T. Itoh, H. Fukuyama, S. Tsunashima, E. Yoshida, Y. Yamabayashi, M. Muraguchi, H. Toba, and H. Sugahara, in Optical Fiber Communication Conference OFC (Optical Society of America, 2005), paper OWH3.
  4. S. Fan and J. M. Kahn, Opt. Lett. 30, 135 (2005).
    [CrossRef] [PubMed]
  5. C. D. Poole and R. E. Wagner, Electron. Lett. 22, 1029 (1986).
    [CrossRef]
  6. E. Alon, V. Stojanovi?, J. M. Kahn, S. P. Boyd, and M. A. Horowitz, in Proceedings of the IEEE Global Telecommunications Conference (Institute of Electrical and Electronics Engineers, 2004), p. 1023.
  7. J. M. Kahn, W. J. Krause, and J. B. Carruthers, IEEE Trans. Commun. 43, 1613 (1995).
    [CrossRef]

2005

2002

K. M. Patel and S. E. Ralph, IEEE Photonics Technol. Lett. 14, 393 (2002).
[CrossRef]

1998

L. Raddatz, I. H. White, D. G. Cunningham, and M. C. Nowell, IEEE Photonics Technol. Lett. 10, 534 (1998).
[CrossRef]

1995

J. M. Kahn, W. J. Krause, and J. B. Carruthers, IEEE Trans. Commun. 43, 1613 (1995).
[CrossRef]

1986

C. D. Poole and R. E. Wagner, Electron. Lett. 22, 1029 (1986).
[CrossRef]

Alon, E.

E. Alon, V. Stojanovi?, J. M. Kahn, S. P. Boyd, and M. A. Horowitz, in Proceedings of the IEEE Global Telecommunications Conference (Institute of Electrical and Electronics Engineers, 2004), p. 1023.

Boyd, S. P.

E. Alon, V. Stojanovi?, J. M. Kahn, S. P. Boyd, and M. A. Horowitz, in Proceedings of the IEEE Global Telecommunications Conference (Institute of Electrical and Electronics Engineers, 2004), p. 1023.

Carruthers, J. B.

J. M. Kahn, W. J. Krause, and J. B. Carruthers, IEEE Trans. Commun. 43, 1613 (1995).
[CrossRef]

Cunningham, D. G.

L. Raddatz, I. H. White, D. G. Cunningham, and M. C. Nowell, IEEE Photonics Technol. Lett. 10, 534 (1998).
[CrossRef]

Fan, S.

Fukuyama, H.

T. Itoh, H. Fukuyama, S. Tsunashima, E. Yoshida, Y. Yamabayashi, M. Muraguchi, H. Toba, and H. Sugahara, in Optical Fiber Communication Conference OFC (Optical Society of America, 2005), paper OWH3.

Horowitz, M. A.

E. Alon, V. Stojanovi?, J. M. Kahn, S. P. Boyd, and M. A. Horowitz, in Proceedings of the IEEE Global Telecommunications Conference (Institute of Electrical and Electronics Engineers, 2004), p. 1023.

Itoh, T.

T. Itoh, H. Fukuyama, S. Tsunashima, E. Yoshida, Y. Yamabayashi, M. Muraguchi, H. Toba, and H. Sugahara, in Optical Fiber Communication Conference OFC (Optical Society of America, 2005), paper OWH3.

Kahn, J. M.

S. Fan and J. M. Kahn, Opt. Lett. 30, 135 (2005).
[CrossRef] [PubMed]

J. M. Kahn, W. J. Krause, and J. B. Carruthers, IEEE Trans. Commun. 43, 1613 (1995).
[CrossRef]

E. Alon, V. Stojanovi?, J. M. Kahn, S. P. Boyd, and M. A. Horowitz, in Proceedings of the IEEE Global Telecommunications Conference (Institute of Electrical and Electronics Engineers, 2004), p. 1023.

Krause, W. J.

J. M. Kahn, W. J. Krause, and J. B. Carruthers, IEEE Trans. Commun. 43, 1613 (1995).
[CrossRef]

Muraguchi, M.

T. Itoh, H. Fukuyama, S. Tsunashima, E. Yoshida, Y. Yamabayashi, M. Muraguchi, H. Toba, and H. Sugahara, in Optical Fiber Communication Conference OFC (Optical Society of America, 2005), paper OWH3.

Nowell, M. C.

L. Raddatz, I. H. White, D. G. Cunningham, and M. C. Nowell, IEEE Photonics Technol. Lett. 10, 534 (1998).
[CrossRef]

Patel, K. M.

K. M. Patel and S. E. Ralph, IEEE Photonics Technol. Lett. 14, 393 (2002).
[CrossRef]

Poole, C. D.

C. D. Poole and R. E. Wagner, Electron. Lett. 22, 1029 (1986).
[CrossRef]

Raddatz, L.

L. Raddatz, I. H. White, D. G. Cunningham, and M. C. Nowell, IEEE Photonics Technol. Lett. 10, 534 (1998).
[CrossRef]

Ralph, S. E.

K. M. Patel and S. E. Ralph, IEEE Photonics Technol. Lett. 14, 393 (2002).
[CrossRef]

Stojanovic, V.

E. Alon, V. Stojanovi?, J. M. Kahn, S. P. Boyd, and M. A. Horowitz, in Proceedings of the IEEE Global Telecommunications Conference (Institute of Electrical and Electronics Engineers, 2004), p. 1023.

Sugahara, H.

T. Itoh, H. Fukuyama, S. Tsunashima, E. Yoshida, Y. Yamabayashi, M. Muraguchi, H. Toba, and H. Sugahara, in Optical Fiber Communication Conference OFC (Optical Society of America, 2005), paper OWH3.

Toba, H.

T. Itoh, H. Fukuyama, S. Tsunashima, E. Yoshida, Y. Yamabayashi, M. Muraguchi, H. Toba, and H. Sugahara, in Optical Fiber Communication Conference OFC (Optical Society of America, 2005), paper OWH3.

Tsunashima, S.

T. Itoh, H. Fukuyama, S. Tsunashima, E. Yoshida, Y. Yamabayashi, M. Muraguchi, H. Toba, and H. Sugahara, in Optical Fiber Communication Conference OFC (Optical Society of America, 2005), paper OWH3.

Wagner, R. E.

C. D. Poole and R. E. Wagner, Electron. Lett. 22, 1029 (1986).
[CrossRef]

White, I. H.

L. Raddatz, I. H. White, D. G. Cunningham, and M. C. Nowell, IEEE Photonics Technol. Lett. 10, 534 (1998).
[CrossRef]

Yamabayashi, Y.

T. Itoh, H. Fukuyama, S. Tsunashima, E. Yoshida, Y. Yamabayashi, M. Muraguchi, H. Toba, and H. Sugahara, in Optical Fiber Communication Conference OFC (Optical Society of America, 2005), paper OWH3.

Yoshida, E.

T. Itoh, H. Fukuyama, S. Tsunashima, E. Yoshida, Y. Yamabayashi, M. Muraguchi, H. Toba, and H. Sugahara, in Optical Fiber Communication Conference OFC (Optical Society of America, 2005), paper OWH3.

Electron. Lett.

C. D. Poole and R. E. Wagner, Electron. Lett. 22, 1029 (1986).
[CrossRef]

IEEE Photonics Technol. Lett.

L. Raddatz, I. H. White, D. G. Cunningham, and M. C. Nowell, IEEE Photonics Technol. Lett. 10, 534 (1998).
[CrossRef]

K. M. Patel and S. E. Ralph, IEEE Photonics Technol. Lett. 14, 393 (2002).
[CrossRef]

IEEE Trans. Commun.

J. M. Kahn, W. J. Krause, and J. B. Carruthers, IEEE Trans. Commun. 43, 1613 (1995).
[CrossRef]

Opt. Lett.

Other

T. Itoh, H. Fukuyama, S. Tsunashima, E. Yoshida, Y. Yamabayashi, M. Muraguchi, H. Toba, and H. Sugahara, in Optical Fiber Communication Conference OFC (Optical Society of America, 2005), paper OWH3.

E. Alon, V. Stojanovi?, J. M. Kahn, S. P. Boyd, and M. A. Horowitz, in Proceedings of the IEEE Global Telecommunications Conference (Institute of Electrical and Electronics Engineers, 2004), p. 1023.

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Figures (3)

Fig. 1
Fig. 1

Experimental setup. Inset, SLM in the Fourier plane of the input face of a MMF. A, Boundary of the SLM active region; B, block structure of the SLM pattern; C, circle enclosing 95% of the power of the beam incident onto the SLM, corresponding to a NA of 0.11 at the MMF input; D, circle corresponding to the MMF’s NA of 0.19. GRIN, gradient index; Gb/s, Gbit/s.

Fig. 2
Fig. 2

10 Gbit s × 1030 m transmission, demonstrating the effect of a launched SOP.

Fig. 3
Fig. 3

10 Gbit s × 11,081 m transmission in a good launched SOP, demonstrating that one SLM can compensate for modal dispersion across a 600 GHz bandwidth.

Equations (2)

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h ( t ) exp ( α L ) P 0 n = 1 2 N [ Re SLM V ( k x , k y ) E 0 ( k x , k y ) × H * in , n ( k x , k y ) z ̂ d k x d k y ] 2 δ ( t τ n ) ,
F [ g ( n T ; t 0 ) ] = g ( 0 T ; t 0 ) n 0 g ( n T ; t 0 ) = 2 g ( 0 T ; t 0 ) n g ( n T ; t 0 ) .

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