[1] D. Dragoman and M. Dragoman, Prog. Quant. Electron. 28, 1 (2004).

[2] Z. Chu, J. Liu, K. Wang, and J. Yao, Chin. Opt. Lett. 8, 697 (2010).

[3] P. Zhou and D. Fan, Chinese J. Lasers (in Chinese) 37, 708 (2010).

[4] J. Yao, N. Chi, P. Yang, H. Cui, J. Wang, J. Li, D. Xu, and X. Ding, Chinese J. Lasers (in Chinese) 36, 2213 (2009).

[5] Y. Ding, IEEE J. Quantum. Electron. 13, 705 (2007).

[6] W. Shi, M. Leigh, J. Zong, and S. Jiang, Opt. Lett. 32, 949 (2007).

[7] T. Edwards, D. Walsh, M. Spurr, C. Rae, M. Dunn, and P. Browne, Opt. Express 14, 1582 (2006).

[8] J. Huillier, G. Torosyan, M. Theuer, Y. Avetisyan, and R. Beigang, App. Phys. B 86, 185 (2007).

[9] Y. Takushima, S. Shin, and Y. Chung, Opt. Express 15, 14783 (2007).

[10] Y. Sasaki, H. Yokoyama, and H. Ito, Electron. Lett. 41, 712 (2005).

[11] Y. Sasaki, A. Yuri, K. Kawase, and H. Ito, Appl. Phys. Lett. 81, 3323 (2002).

[12] Y. Sasaki, Y. Avetisyan, H. Yokoyama, and H. Ito, Opt. Lett. 30, 2927 (2005).

[13] C. Weiss, G. Torosyan, Y. Avetisyan, and R. Beigang, Opt. Lett. 26, 563 (2001).

[14] K. Takiguchi and K. Hotate, J. Lightwave. Technol. 11, 1687 (1993).

[15] G. P. Agrawal, Nonlinear f iber optics, 2nd ed. (Aca-demic Press, San Diego, 1995).

[16] T. Suhara, Y. Avetisyan, and H. Ito, IEEE J. Quant. Electron. 39, 166 (2002).

[17] A. Polyanin, "Helmholtz equation" http://eqworld. ipm-net. ru/en/solutions/lpde/lpde303.pdf (2004).

[18] S. Takehito, W. Shi, and I. Yoh, Opt. Rev. 17, 327 (2010).

[19] T. Tanabe, S. Ragam, and Y. Oyama, Review of Scien-tific Instruments 80, 113105 (2009).

[20] R. Sowade, I. Breunig, I. Mayorga, J. Kiessling, C. Tulea, V. Dierolf, and K. Buse, Opt. Express 17, 22303 (2009).

[21] M. Asobe, T. Kanamori, and K. Kubodera, IEEE J. Quant. Electron. 29, 2325 (1993).