Abstract

For the first time to our knowledge, we demonstrate simultaneous demodulation and slow-light delay of differential phase-shift keying (DPSK) signals at flexible bit rates using the stimulated-Brillouin-scattering-based optical filtering effect in optical fiber. Both 10 and 2.5Gbits DPSK signals have been demodulated and delayed with excellent performances. In the case of the10Gbits DPSK signal, after demodulation the tunable delay range with error-free operation is about 50ps, which we believe is the best result obtained for 10Gbits slow-light demonstrations. For the 2.5Gbits DPSK signal, the optimal sensitivity after demodulation is 36.5dBm, which is comparable with the back-to-back sensitivity of a 2.5Gbits nonreturn-to-zero signal.

© 2007 Optical Society of America

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References

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2007 (3)

2005 (2)

A. H. Gnauck and P. J. Winzer, J. Lightwave Technol. 23, 115 (2005).
[CrossRef]

C. W. Chow and H. K. Tsang, IEEE Photon. Technol. Lett. 17, 1313 (2005).
[CrossRef]

2002 (1)

2001 (1)

D. Penninckx, H. Bissessur, P. Brindel, E. Gohin, and F. Bakhti, in Proceedings of 27th European Conference on Optical Communication, ECOC '01 (IEEE, 2001), Vol. 3, pp. 456-457.

1994 (1)

E. Swanson, J. Livas, and R. Bondurant, IEEE Photon. Technol. Lett. 6, 263 (1994).
[CrossRef]

Bakhti, F.

D. Penninckx, H. Bissessur, P. Brindel, E. Gohin, and F. Bakhti, in Proceedings of 27th European Conference on Optical Communication, ECOC '01 (IEEE, 2001), Vol. 3, pp. 456-457.

Bissessur, H.

D. Penninckx, H. Bissessur, P. Brindel, E. Gohin, and F. Bakhti, in Proceedings of 27th European Conference on Optical Communication, ECOC '01 (IEEE, 2001), Vol. 3, pp. 456-457.

Bondurant, R.

E. Swanson, J. Livas, and R. Bondurant, IEEE Photon. Technol. Lett. 6, 263 (1994).
[CrossRef]

Brindel, P.

D. Penninckx, H. Bissessur, P. Brindel, E. Gohin, and F. Bakhti, in Proceedings of 27th European Conference on Optical Communication, ECOC '01 (IEEE, 2001), Vol. 3, pp. 456-457.

Chow, C. W.

C. W. Chow and H. K. Tsang, IEEE Photon. Technol. Lett. 17, 1313 (2005).
[CrossRef]

Dawes, A. M. C.

Fazal, I.

Gauthier, D. J.

Gnauck, A. H.

Gohin, E.

D. Penninckx, H. Bissessur, P. Brindel, E. Gohin, and F. Bakhti, in Proceedings of 27th European Conference on Optical Communication, ECOC '01 (IEEE, 2001), Vol. 3, pp. 456-457.

Hu, W.

L. Yi, L. Zhan, W. Hu, and Y. Xia, IEEE Photon. Technol. Lett. 19, 619 (2007).
[CrossRef]

Kikuchi, K.

Livas, J.

E. Swanson, J. Livas, and R. Bondurant, IEEE Photon. Technol. Lett. 6, 263 (1994).
[CrossRef]

Penninckx, D.

D. Penninckx, H. Bissessur, P. Brindel, E. Gohin, and F. Bakhti, in Proceedings of 27th European Conference on Optical Communication, ECOC '01 (IEEE, 2001), Vol. 3, pp. 456-457.

Swanson, E.

E. Swanson, J. Livas, and R. Bondurant, IEEE Photon. Technol. Lett. 6, 263 (1994).
[CrossRef]

Takushima, Y.

Tanemura, T.

Tsang, H. K.

C. W. Chow and H. K. Tsang, IEEE Photon. Technol. Lett. 17, 1313 (2005).
[CrossRef]

Willner, A. E.

Winzer, P. J.

Xia, Y.

L. Yi, L. Zhan, W. Hu, and Y. Xia, IEEE Photon. Technol. Lett. 19, 619 (2007).
[CrossRef]

Yan, L.

Yi, L.

L. Yi, L. Zhan, W. Hu, and Y. Xia, IEEE Photon. Technol. Lett. 19, 619 (2007).
[CrossRef]

Zhan, L.

L. Yi, L. Zhan, W. Hu, and Y. Xia, IEEE Photon. Technol. Lett. 19, 619 (2007).
[CrossRef]

Zhang, B.

Zhang, L.

Zhu, Z.

IEEE Photon. Technol. Lett. (3)

E. Swanson, J. Livas, and R. Bondurant, IEEE Photon. Technol. Lett. 6, 263 (1994).
[CrossRef]

C. W. Chow and H. K. Tsang, IEEE Photon. Technol. Lett. 17, 1313 (2005).
[CrossRef]

L. Yi, L. Zhan, W. Hu, and Y. Xia, IEEE Photon. Technol. Lett. 19, 619 (2007).
[CrossRef]

J. Lightwave Technol. (2)

Opt. Express (1)

Opt. Lett. (1)

Other (1)

D. Penninckx, H. Bissessur, P. Brindel, E. Gohin, and F. Bakhti, in Proceedings of 27th European Conference on Optical Communication, ECOC '01 (IEEE, 2001), Vol. 3, pp. 456-457.

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Figures (5)

Fig. 1
Fig. 1

Experimental setup for DPSK demodulation and slow light based on SBS in optical fiber. OC1, OC2, optical circulators. Other abbreviations defined in text.

Fig. 2
Fig. 2

(a) SBS gain spectra measurement for different pump-power levels. (b) SBS gain and bandwidth evolution with pump power for 10 Gbit s DPSK signal.

Fig. 3
Fig. 3

Simulated and measured eye diagrams of 10 Gbit s DPSK signal after SBS-based demodulation.

Fig. 4
Fig. 4

(a) BER and (b) delay-time evolution with pump power for 10 Gbit s DPSK signal. The insets in (b) are eye diagrams.

Fig. 5
Fig. 5

(a) BER and (b) delay-time evolution with pump power for 2.5 Gbit s DPSK signal. The insets in (b) are eye diagrams.

Equations (2)

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E out ( ω ) = exp ( g ( ω ) L eff 2 ) E in ( ω ) ,
g ( ω ) = g B 1 i ( ω + Ω B ω p ) Γ B 2 I p ( ω p ) d ω p ,

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