[1] S. Gringeri, B. Basch, V. Shukla, R. Egorov, T. J. Xia. Flexible architectures for optical transport nodes and networks. IEEE Commun. Mag., 48, 40-50(2010).
[2] C. Kachris, K. Kanonakis, I. Tomkos. Optical interconnection networks in data centers: recent trends and future challenges. IEEE Commun. Mag., 51, 39-45(2013).
[3] W. M. Mellette, G. M. Schuster, G. Porter, G. Papen, J. E. Ford. A scalable, partially configurable optical switch for data center networks. J. Lightwave Technol., 35, 136-144(2017).
[4] T. Seok, N. Quack, S. Han, R. Muller, M. Wu. Large-scale broadband digital silicon photonic switches with vertical adiabatic couplers. Optica, 3, 64-70(2016).
[5] R. Stabile, A. A. Mejia, K. A. Williams. Monolithic active passive 16 × 16 optoelectronic switch. Opt. Lett., 37, 4666-4668(2012).
[6] Q. Cheng, A. Wonfor, J. L. Wei, R. V. Penty, I. H. White. Low-energy, high-performance lossless 8 × 8 SOA switch. Optical Fiber Communication Conference and Exhibition (OFC), 1-3(2015).
[7] N. Farrington, A. Forencich, P. C. Sun, S. Fainman, J. Ford, A. Vahdat, G. Porter, G. C. Papen. A 10 μs hybrid optical-circuit/electrical-packet network for datacenters. Optical Fiber Communication Conference/National Fiber Optic Engineers Conference, OW3H.3(2013).
[8] K. Sato, H. Hasegawa, T. Niwa, T. Watanabe. A large-scale wavelength routing optical switch for data center networks. IEEE Commun. Mag., 51, 46-52(2013).
[9] K. Ueda, Y. Mori, H. Hasegawa, K. I. Sato, T. Watanabe. Large-scale optical-switch prototypes utilizing cyclic arrayed-waveguide gratings for datacenters. J. Lightwave Technol., 34, 608-617(2016).
[10] A. Vahdat. Delivering scale out data center networking with optics—why and how. Optical Fiber Communication Conference and Exposition and the National Fiber Optic Engineers Conference (OFC/NFOEC), 1-36(2012).
[11] A. Rickman. The commercialization of silicon photonics. Nat. Photonics, 8, 579-582(2014).
[12] M. J. R. Heck, J. F. Bauters, M. L. Davenport, J. K. Doylend, S. Jain, G. Kurczveil, S. Srinivasan, Y. Tang, J. E. Bowers. Hybrid silicon photonic integrated circuit technology. IEEE J. Sel. Top. Quantum Electron., 19, 6100117(2013).
[13] Y. Zhang, A. Hosseini, X. Xu, D. Kwong, R. T. Chen. Ultralow-loss silicon waveguide crossing using Bloch modes in index-engineered cascaded multimode-interference couplers. Opt. Lett., 38, 3608-3611(2013).
[14] P. J. Bock, P. Cheben, J. H. Schmid, J. Lapointe, A. Delâge, D. X. Xu, S. Janz, A. Densmore, T. J. Hall. Subwavelength grating crossings for silicon wire waveguides. Opt. Express, 18, 16146-16155(2010).
[15] Y. Ma, Y. Zhang, S. Yang, A. Novack, R. Ding, A. E. J. Lim, G. Q. Lo, T. B. Jones, M. Hochberg. Ultralow loss single layer submicron silicon waveguide crossing for SOI optical interconnect. Opt. Express, 21, 29374-29382(2013).
[16] P. Sanchis, J. V. Galán, A. Griol, J. Martí, M. A. Piqueras, J. M. Perdigues. Low-crosstalk in silicon-on-insulator waveguide crossings with optimized-angle. IEEE Photon. Technol. Lett., 19, 1583-1585(2007).
[17] M. P. Earnshaw, J. B. D. Soole, M. Cappuzzo, L. Gomez, E. Laskowski, A. Paunescu. 8 × 8 optical switch matrix using generalized Mach–Zehnder interferometers. IEEE Photon. Technol. Lett., 15, 810-812(2003).
[18] H. Subbaraman, X. Xu, A. Hosseini, X. Zhang, Y. Zhang, D. Kwong, R. T. Chen. Recent advances in silicon-based passive and active optical interconnects. Opt. Express, 23, 2487-2511(2015).
[19] T. Fukazawa, T. Hirano, F. Ohno, T. Baba. Low loss intersection of Si photonic wire waveguides. Jpn. J. Appl. Phys., 43, 646-647(2004).
[20] H. Venghaus, X. J. M. Leijtens, B. Kuhlow, M. K. Smit. Arrayed waveguide gratings. Wavelength Filters in Fiber Optics, 125-187(2006).
