[1] Z. Dong, Q. Sui, A. P. T. Lau, K. Zhong, Z. L. L. Li, C. Lu. Proceedings of the Optical Fiber Communication Conference(2015).

[2] W. Peng, L. Xi, X. Weng, X. Zhang, D. Zhao, X. Zhang. Chin. Opt. Lett., 11, 080604(2013).

[3] S. D. Dods, T. B. Anderson, K. Clarke, M. Bakaul, A. Kowalczyk. Proceedings of the Optical Fiber Communication Conference(2007).

[4] Z. Q. Pan, C. Y. Yu, E. A. Willner. Opt. Fiber Technol., 16, 20(2010).

[5] Z. Yan, Y. Liu, X. Chen. Chin. Opt. Lett., 12, 100605(2014).

[6] W. Wei, C. G. Wang, J. J. Yu. IEEE Commun. Mag., 50, 106(2012).

[7] F. N. Khan, A. P. T. Lau, Z. Li, C. Lu, P. K. A. Wai. IEEE Photonics. Technol. Lett., 22, 823(2010).

[8] F. N. Khan, A. P. Tao, L. C. Lu, P. K. A. Wai. Proceedings of the National Fiber Optic Engineers Conference(2010).

[9] Y. Yu, B. Zhang, C. Yu. Opt. Express, 22, 6874(2014).

[10] Y. Yu, C. Yu. Opt. Express, 23, 11284(2015).

[11] X. Wang, X. M. Ge, Z. Ding, Y. Xu. Opt. Commun., 341, 237(2015).

[12] Y. Zhou, T. B. Anderson, K. Clarke, A. Nirmalathas, K. L. Lee. IEEE Photonics. Technol. Lett., 21, 893(2009).

[13] S. Cui, S. Jin, W. Xia, C. Ke, D. Liu. Opt. Commun., 354, 218(2015).

[14] . VPItransmissionMaker(2013).

[15] D. Xie, J. He, L. Chen, J. Tang, M. Chen. Chin. Opt. Lett., 12, 040604(2014).