[1] A. W. Poon, X. Luo, F. Xu, and H. Chen, Proc. IEEE 97, 1216 (2009).

[2] A. Shacham, K. Bergman, and L. P. Carloni, in Proceedings of the 1st IEEE International Symposium on Networks-on-Chips (NOCS 2007) (2007).

[3] B. Timotijevic, G. Mashanovich, A. Michaeli, O. Cohen, V. M. N. Passaro, J. Crnjanski, and G. T. Reed, Chin. Opt. Lett. 7, 291 (2009).

[4] Z. Xia, H. Yi, Y. Chen, and Z. Zhou, Chin. Opt. Lett. 7, 598 (2009).

[5] M. R. Watts, D. C. Trotter, and R. W. Young, in Optical Fiber Communication Conference and Exposition and the National Fiber Optic Engineers Conference Technical Digest PDP14 (2008).

[6] H. L. R. Lira, S. Manipatruni, and M. Lipson, Opt. Express 17, 22271 (2009).

[7] N. Sherwood-Droz, H. Wang, L. Chen, B. G. Lee, A. Biberman, K. Bergman, and M. Lipson, Opt. Express 16, 15915 (2008).

[8] Y. Vlasov, W. M. J. Green, and F. Xia, Nature Photon. 2, 242 (2008).

[9] X. Luo, S. Feng, and A. W. Poon, in Proceedings of the 14th Optoelectronics and Communications Conference (OECC 2009) ThG2 (2009).

[10] R. A. Soref and B. R. Bennett, IEEE J. Quantum Electron. 23, 123 (1987).

[11] X. J. Xu, S.-W. Chen, H.-H. Xu, Y. Sun, Y.-D. Yu, J.-Z. Yu, and Q.-M. Wang, Chin. Phys. B 18, 3900 (2009).

[12] C. E. Png, S. P. Chan, S. T. Lim, and G. T. Reed, J. Lightwave Technol. 22, 1573 (2004).

[13] A. Vorckel, M. Monster, W. Henschel, P. H. Bolivar, and H. Kurz, IEEE Photon. Technol. Lett. 15, 921 (2003).

[14] P. Dong, S. F. Preble, and M. Lipson, Opt. Express 15, 9600 (2007).

[15] A. Yariv, Electron. Lett. 36, 321 (2000).

[16] Q. Xu, B. Schmidt, J. Shakya, and M. Lipson, Opt. Express 14, 9430 (2006).