Abstract

In an all-Raman amplified, recirculating loop containing 100-km spans, we have tested dense wavelength-division multiplexing at 10 Gbits/s per channel, using dispersion-managed solitons and a novel, periodic-group-delay-complemented dispersion-compensation scheme that greatly reduces the timing jitter from interchannel collisions. The achieved working distances are 9000 and 20,000 km for uncorrected bit error rates of <10-8 and <10-3, respectively, the latter corresponding to the use of “enhanced” forward error correction; significantly, these distances are very close to those achievable in single-channel transmission in the same system.

© 2003 Optical Society of America

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References

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  1. X. Wei, X. Liu, C. Xie, and L. F. Mollenauer, Opt. Lett. 28, 983 (2003).
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    [CrossRef] [PubMed]
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  6. Applied Micro Circuits Corporation, San Diego, Calif.
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    [CrossRef]
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    [CrossRef]

2003 (3)

2002 (1)

1999 (2)

1990 (1)

Gordon, J. P.

Kang, I.

L. F. Mollenauer, C. Xu, C. Xie, and I. Kang, in Nonlinear Optics, Vol. 79 of OSA Trends in Optics and Photonics Series (Optical Society of America, Washington, D.C., 2002), pp. 66–68.

Liu, X.

Mamyshev, P. V.

Mamysheva, N. A.

McKinstrie, C. J.

Mollenauer, L. F.

Wei, X.

Xie, C.

Xu, C.

C. Xu, X. Liu, L. F. Mollenauer, and X. Wei, IEEE Photon. Technol. Lett. 15, 617 (2003).
[CrossRef]

C. Xu, C. Xie, and L. F. Mollenauer, Opt. Lett. 27, 1303 (2002).
[CrossRef]

L. F. Mollenauer, C. Xu, C. Xie, and I. Kang, in Nonlinear Optics, Vol. 79 of OSA Trends in Optics and Photonics Series (Optical Society of America, Washington, D.C., 2002), pp. 66–68.

IEEE Photon. Technol. Lett. (1)

C. Xu, X. Liu, L. F. Mollenauer, and X. Wei, IEEE Photon. Technol. Lett. 15, 617 (2003).
[CrossRef]

Opt. Lett. (6)

OSA Trends in Optics and Photonics Series (1)

L. F. Mollenauer, C. Xu, C. Xie, and I. Kang, in Nonlinear Optics, Vol. 79 of OSA Trends in Optics and Photonics Series (Optical Society of America, Washington, D.C., 2002), pp. 66–68.

Other (2)

Applied Micro Circuits Corporation, San Diego, Calif.

I. P. Kaminow and T. L. Koch, eds., Optical Fiber Telecommunications IIIA (Academic, San Diego, Calif., 1997), Chap. 12, pp. 400–410.

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Figures (4)

Fig. 1
Fig. 1

Schematic of the recirculating loop. The small rectangular boxes represent the WDM couplers used for Raman pump injection (shown configured for forward–backward pumping). SMF, single-mode fiber; A.O.Mod., acousto-optic modulator; Xmtr., transmitter. For further details, see text.

Fig. 2
Fig. 2

Measured group delay of a Gires–Tournois etalon-based DCM, with channel spacing of 50 GHz, of the type (PowerShaper FDS, Avanex Corp., Fremont, Calif.) used in the experiments reported on here. Note that the mean group delays for each channel are the same. Also note the lack of detectable delay ripple in the usable frequency regions. The insertion loss is 2.6 dB.

Fig. 3
Fig. 3

Measured BER versus distance for (diamonds) the channel at 1575 nm (near the middle of the group of 37 WDM channels shown in Fig. 4), obtained using the PGD-complemented dispersion compensation; (triangles) the same, but with all other channels turned off (the single-channel result); (circles) the best earlier WDM results in the same setup but with pure DCF compensation. (The distances reported here are just multiples of 600 km and thus do not include the DCF and lumped Raman amplifier fiber lengths.) The polarization scrambler was turned on for both sets of measurements involving the PGD devices, although it tended to cause an increase in the BER except at the shorter distances.

Fig. 4
Fig. 4

BER versus channel wavelength at (diamonds) 9000 km and (squares) 18,000 km; the polarization scrambler is turned on, and the relative timing between adjacent channels is adjusted for smallest BER.

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