Abstract

We present a theoretical analysis of the slow-light tunable optical buffers based on fiber Brillouin amplifiers (FBA). Its storage capacity was discussed for return-to-zero (RZ) and non-return-to-zero (NRZ) bit streams. Gain saturation and pulse broadening are two key factors which limit the buffer capacity. Gain saturation is an inherent characteristic of the FBA. Broadening of the amplified pulse always accumulates with increasing gain owing to the dispersion during stimulated Brillouin scattering (SBS) process. It is shown that the maximum buffer capacity varies with data bit rate and for continuous wave (CW) or quasi-CW pump it is 0.53 and 1.04 bit for RZ and NRZ respectively. Also, the optimum data bit rate to achieve the best storage capacity is obtained.

© 2007 Optical Society of America

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2007 (3)

L. L. Yi, L. Zhan, W. S. Hu, and Y. X. Xia, "Delay of broadband signals using slow light in stimulated Brillouin scattering With phase-modulated pump," IEEE Photon. Technol. Lett. 19, 619-621 (2007).
[CrossRef]

K. Y. Song, and K. Hotate, "25 GHz bandwidth Brillouin slow light in optical fibers," Opt. Lett. 32, 217-219 (2007).
[CrossRef]

Z. W. Lu, Y. K. Dong, and Q. Li, "Slow light in multi-line Brillouin gain spectrum," Opt. Express 15, 1871-1877 (2007).
[CrossRef]

2006 (7)

2005 (6)

Electron. Lett. (1)

T. Schneider, M. Junker, K. U. Lauterbach, and R. Henker, "Distortion reduction in cascaded slow light delays," Electron. Lett. 42, 1110-1112 (2006).
[CrossRef]

IEEE Photon. Technol. Lett. (1)

L. L. Yi, L. Zhan, W. S. Hu, and Y. X. Xia, "Delay of broadband signals using slow light in stimulated Brillouin scattering With phase-modulated pump," IEEE Photon. Technol. Lett. 19, 619-621 (2007).
[CrossRef]

J. Lightw. Technol. (1)

R. S. Tucker, P. C. Ku, and C. J. Chang-Hasnain, "Slow-light optical buffers: Capabilities and fundamental limitations, " J. Lightw. Technol. 23, 4046-4066 (2005).
[CrossRef]

J. Opt. Soc. Am. B (1)

Opt. Express (8)

Opt. Lett. (3)

Phys. Rev. Lett. (1)

Y. Okawachi, M. S. Bigelow, J. E. Sharping, Z. M. Zhu, A. Schweinsberg, D. J. Gauthier, R. W. Boyd, and A. L. Gaeta, "Tunable all-optical delays via Brillouin slow light in an optical fiber," Phys. Rev. Lett. 94, 153902 (2005).
[CrossRef]

Other (3)

Z. M. Zhu, M. C. Dawes, D. J. Gauthier, L. Zhang, and A. E. Willner, "12-GHz-Bandwidth SBS slow light in optical fibers," in proceedings of OFC 2006, paper PDP1.

G. P. Agrawal, Nonlinear Fiber Optics (Academic Press, 2005), Chap. 9.

L. Zhang, T. Luo, W. Zhang, C. Yu, Y. Wang, and A. E. Willner, "Optimizing operating conditions to reduce data pattern dependence induced by slow light elements," in proceedings of OFC 2006, paper OFP7.

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