[1] D. Penninckx and S. Lanne, in Proceedings of OFC'2001 TUP1, 1 (2001).
[2] F. Heismann, D. A. Fishman, and D. L. Wilson, in Proceedings of ECOC'1998 529 (1998).
[3] R. Noe, D. Sandel, M. Yoshida-Dierolf, S. Hinz, V. Mirvoda, A. Schopflin, C. Gungener, E. Gottwald, C. Scheerer, G. Fischer, T. Weyrauch, and W. Haase, J. Lightwave Technol. 17, 1602 (1999).
[4] S. Lee, R. Khosravani, J. Peng, V. Grubsky, D. S. Starodubov, A. E. Willner, and J. Feinberg, IEEE Photon. Technol. Lett. 11, 1277 (1999).
[5] Z. Pan, Y. Xie, S. Lee, A. E. Willner, V. Grubsky, D. S. Starodubov, and J. Feinberg, in Proceedings of OFC'2000 THH2, 113 (2000).
[6] A. Lima, I. Lima, B. Marks, C. Menyuk, and W. Kath, in Proceedings of OFC'2003 THA3, 419 (2003).
[7] D. Wang, M. Maatthews, and J. Brennan, in Proceedings of OFC'2003 WC3, 313 (2003).