Abstract

We experimentally demonstrate linewidth-tolerant real-time 40-Gbits (10-Gsymbols) 16-quadrature amplitude modulation. We achieved bit-error rates of <109 using an external-cavity laser diode with a linewidth of 200kHz and <107 using a distributed-feedback laser diode with a linewidth of 30MHz, thanks to the phase-noise canceling capability provided by self-homodyne detection using a pilot carrier. Pre-equalization based on digital signal processing was employed to suppress intersymbol interference caused by the limited-frequency bandwidth of electrical components.

© 2009 Optical Society of America

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  1. M. Yoshida, H. Goto, K. Kasai, and M. Nakazawa, Opt. Express 16, 829 (2008).
    [CrossRef] [PubMed]
  2. C. Zhang, Y. Mori, K. Igarashi, K. Katoh, and K. Kikuchi, in Optical Fiber Communications (OFC) Conference (2009), paper OTuG3.
  3. A. H. Gnauck, P. J. Winzer, C. R. Doerr, and L. L. Buhl, in Optical Fiber Communications (OFC) Conference (2009), paper PDPB8.
  4. E. Ip and J. M. Kahn, J. Lightwave Technol. 23, 4110 (2005).
    [CrossRef]
  5. M. Seimetz, in Optical Fiber Communications (OFC) Conference (2008), paper OTuM2.
  6. T. Pfau, S. Hoffmann, and R. Noé, J. Lightwave Technol. 27, 989 (2009).
    [CrossRef]
  7. N. Kikuchi, J. Lightwave Technol. 25, 2060 (2007).
    [CrossRef]
  8. C. R. Doerr, P. J. Winzer, L. Zhang, L. L. Buhl, and N. J. Sauer, in Optical Fiber Communications (OFC) Conference (2008), paper PDP20.
  9. T. Sakamoto, A. Chiba, and T. Kawanishi, in European Conference on Optical Communications (ECOC) (2007), paper PD2.8.
  10. M. Nakamura, Y. Kamio, and T. Miyazaki, Opt. Express 16, 10611 (2008).
    [CrossRef] [PubMed]
  11. T. Miyazaki, IEEE Photonics Technol. Lett. 18, 388 (2006).
    [CrossRef]
  12. M. Nakamura, Y. Kamio, and T. Miyazaki, Electron. Lett. 45, 368 (2009).
    [CrossRef]

2009 (2)

T. Pfau, S. Hoffmann, and R. Noé, J. Lightwave Technol. 27, 989 (2009).
[CrossRef]

M. Nakamura, Y. Kamio, and T. Miyazaki, Electron. Lett. 45, 368 (2009).
[CrossRef]

2008 (2)

2007 (1)

2006 (1)

T. Miyazaki, IEEE Photonics Technol. Lett. 18, 388 (2006).
[CrossRef]

2005 (1)

Buhl, L. L.

A. H. Gnauck, P. J. Winzer, C. R. Doerr, and L. L. Buhl, in Optical Fiber Communications (OFC) Conference (2009), paper PDPB8.

C. R. Doerr, P. J. Winzer, L. Zhang, L. L. Buhl, and N. J. Sauer, in Optical Fiber Communications (OFC) Conference (2008), paper PDP20.

Chiba, A.

T. Sakamoto, A. Chiba, and T. Kawanishi, in European Conference on Optical Communications (ECOC) (2007), paper PD2.8.

Doerr, C. R.

C. R. Doerr, P. J. Winzer, L. Zhang, L. L. Buhl, and N. J. Sauer, in Optical Fiber Communications (OFC) Conference (2008), paper PDP20.

A. H. Gnauck, P. J. Winzer, C. R. Doerr, and L. L. Buhl, in Optical Fiber Communications (OFC) Conference (2009), paper PDPB8.

Gnauck, A. H.

A. H. Gnauck, P. J. Winzer, C. R. Doerr, and L. L. Buhl, in Optical Fiber Communications (OFC) Conference (2009), paper PDPB8.

Goto, H.

Hoffmann, S.

Igarashi, K.

C. Zhang, Y. Mori, K. Igarashi, K. Katoh, and K. Kikuchi, in Optical Fiber Communications (OFC) Conference (2009), paper OTuG3.

Ip, E.

Kahn, J. M.

Kamio, Y.

M. Nakamura, Y. Kamio, and T. Miyazaki, Electron. Lett. 45, 368 (2009).
[CrossRef]

M. Nakamura, Y. Kamio, and T. Miyazaki, Opt. Express 16, 10611 (2008).
[CrossRef] [PubMed]

Kasai, K.

Katoh, K.

C. Zhang, Y. Mori, K. Igarashi, K. Katoh, and K. Kikuchi, in Optical Fiber Communications (OFC) Conference (2009), paper OTuG3.

Kawanishi, T.

T. Sakamoto, A. Chiba, and T. Kawanishi, in European Conference on Optical Communications (ECOC) (2007), paper PD2.8.

Kikuchi, K.

C. Zhang, Y. Mori, K. Igarashi, K. Katoh, and K. Kikuchi, in Optical Fiber Communications (OFC) Conference (2009), paper OTuG3.

Kikuchi, N.

Miyazaki, T.

M. Nakamura, Y. Kamio, and T. Miyazaki, Electron. Lett. 45, 368 (2009).
[CrossRef]

M. Nakamura, Y. Kamio, and T. Miyazaki, Opt. Express 16, 10611 (2008).
[CrossRef] [PubMed]

T. Miyazaki, IEEE Photonics Technol. Lett. 18, 388 (2006).
[CrossRef]

Mori, Y.

C. Zhang, Y. Mori, K. Igarashi, K. Katoh, and K. Kikuchi, in Optical Fiber Communications (OFC) Conference (2009), paper OTuG3.

Nakamura, M.

M. Nakamura, Y. Kamio, and T. Miyazaki, Electron. Lett. 45, 368 (2009).
[CrossRef]

M. Nakamura, Y. Kamio, and T. Miyazaki, Opt. Express 16, 10611 (2008).
[CrossRef] [PubMed]

Nakazawa, M.

Noé, R.

Pfau, T.

Sakamoto, T.

T. Sakamoto, A. Chiba, and T. Kawanishi, in European Conference on Optical Communications (ECOC) (2007), paper PD2.8.

Sauer, N. J.

C. R. Doerr, P. J. Winzer, L. Zhang, L. L. Buhl, and N. J. Sauer, in Optical Fiber Communications (OFC) Conference (2008), paper PDP20.

Seimetz, M.

M. Seimetz, in Optical Fiber Communications (OFC) Conference (2008), paper OTuM2.

Winzer, P. J.

A. H. Gnauck, P. J. Winzer, C. R. Doerr, and L. L. Buhl, in Optical Fiber Communications (OFC) Conference (2009), paper PDPB8.

C. R. Doerr, P. J. Winzer, L. Zhang, L. L. Buhl, and N. J. Sauer, in Optical Fiber Communications (OFC) Conference (2008), paper PDP20.

Yoshida, M.

Zhang, C.

C. Zhang, Y. Mori, K. Igarashi, K. Katoh, and K. Kikuchi, in Optical Fiber Communications (OFC) Conference (2009), paper OTuG3.

Zhang, L.

C. R. Doerr, P. J. Winzer, L. Zhang, L. L. Buhl, and N. J. Sauer, in Optical Fiber Communications (OFC) Conference (2008), paper PDP20.

Electron. Lett. (1)

M. Nakamura, Y. Kamio, and T. Miyazaki, Electron. Lett. 45, 368 (2009).
[CrossRef]

IEEE Photonics Technol. Lett. (1)

T. Miyazaki, IEEE Photonics Technol. Lett. 18, 388 (2006).
[CrossRef]

J. Lightwave Technol. (3)

Opt. Express (2)

Other (5)

C. Zhang, Y. Mori, K. Igarashi, K. Katoh, and K. Kikuchi, in Optical Fiber Communications (OFC) Conference (2009), paper OTuG3.

A. H. Gnauck, P. J. Winzer, C. R. Doerr, and L. L. Buhl, in Optical Fiber Communications (OFC) Conference (2009), paper PDPB8.

M. Seimetz, in Optical Fiber Communications (OFC) Conference (2008), paper OTuM2.

C. R. Doerr, P. J. Winzer, L. Zhang, L. L. Buhl, and N. J. Sauer, in Optical Fiber Communications (OFC) Conference (2008), paper PDP20.

T. Sakamoto, A. Chiba, and T. Kawanishi, in European Conference on Optical Communications (ECOC) (2007), paper PD2.8.

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Figures (6)

Fig. 1
Fig. 1

Experimental setup for 40-Gbit/s 16-QAM self-homodyne detection.

Fig. 2
Fig. 2

Pilot-carrier vector modulator.

Fig. 3
Fig. 3

Multilevel signals for 16-QAM modulation (a) before and (b) after pre-equalization.

Fig. 4
Fig. 4

Constellation and eye diagrams of the received 40- Gbit/s 16-QAM signals (a) using an EC-LD without pre-equalization, (b) using the EC-LD with pre-equalization, and (c) using a DFB-LD with pre-equalization.

Fig. 5
Fig. 5

Optical spectrum of 40-Gbit/s 16-QAM signal.

Fig. 6
Fig. 6

BER characteristics of the 40-Gbit/s 16-QAM signal.

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e 2 = { i = 1 N ( y i r i ) 2 } N ,

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