[1] R. Wiesmann, O. Bleck, and H. Heppner, in Proceedings of OFC2000 2, 171 (2000).

[2] K. Otsuka, in Proceedings of ECOC'97 147 (1997).

[3] S. K. Shin, in Proceedings of OFC'98 168 (1998).

[4] G. Bendelli, C. Cavazzoni, R. Girardi, and R. Lano, in Proceedings of ECOC2000 4, 113 (2000).

[5] G. R. Hill, Chidgey, P. J. Kaufhold, and F. Lynch, J. Lightwave Technol. 11, 667 (1993).

[6] C. M. Weinert and Heinrich, in Proceedings of ECOC2000 4, 121 (2000).

[7] H. S. Chung, in Proceedings of APOC2002 (2002).

[8] S. Yan, A. A. M. Saleh, J. L. Zyskind, D. L. Wilson, A. K. Srivastava, and J. W. Sulhoff, J. Lightwave Technol. 15, 1083 (1997).

[9] H. S. Chung, S. K. Shin, H. G. Woo, and Y. C. Chung, in Proceedings of OFC2000 WK7 (2000).

[10] G. P. Agrawal, Nonlinear Fiber Optics (Academic, New York) ch. 8.

[11] Z. Wang, A. Li, C. J. Mahon, G. Jacobsen, and E. Bodtker, IEEE Photon. Technol. Lett. 7, (1995).