[1] J. Capmany, B. Ortega and D. Pastor, J. Lightw. Technol. 24, 201 (2006).
[2] R. A. Minasian, IEEE Trans. Microw. Theory Technol. 54, 832 (2006).
[3] JIN Sheng-cai and ZHANG Ai-ling, Optoelectronics Letters 7, 113 (2011).
[4] WU Xiao-jun and ZHANG Ai-ling, Optoelectronics Letters 8, 340 (2012).
[5] B. Vidal, T. Mengual, C. Ibá ez-López and J. Marti, IEEE Photon. Technol. Lett. 18, 2272 (2006).
[6] Xiaoke Yi, T. X. H. Huang and R. A. Minasian, IEEE Trans. Microw. Theory Technol. 58, 3088 (2010).
[7] Haiyan Ou, Kun Zhu, Chenhui Ye and Ying Hu, IEEE Photon. Technol. Lett. 23, 938 (2011).
[8] J. Chang, Yanhua Deng, M. P. Fok, J. Meister and P. R. Prucnal, Applied Optics 51, 4265 (2012).
[9] D. B. Hunter and R. A. Minasian, IEEE Trans. Microw. Theory Technol. 45, 1463 (1997).
[10] C. Pulikkaseril, E. H. W. Chan and R. A. Minasian, J. Lightw. Technol. 28, 262 (2010).
[11] E. H. W. Chan and R. A. Minasian, Electron. Lett. 47, 113 (2011).
[12] C. Pulikkaseril, E. H. W. Chan and R. A. Minasian, Microwave and Optical Technology Letters 53, 1284 (2011).
[13] J. Capmany, J. Lightw. Technol. 24, 2564 (2006).
[14] N. You and R. A. Minasian, IEEE Trans. Microw. Theory Technol. 47, 1304 (1999).
[15] N. You and R. A. Minasian, Electron. Lett. 35, 2125 (1999).
[16] E. Xu, X. Zhang, L. Zhou, Y. Zhang, Y. Yu, X. Li and D. Huang, J. Lightw. Technol. 28, 2358 (2010).