Broadband hitless silicon electro-optic switch for on-chip optical networks Hugo L. R. Lira, Sasikanth Manipatruni, and Michal Lipson* School of Electrical and Computer Engineering, Cornell University, Ithaca, NY 14853, U.S.A. *ml292@cornell.edu Abstract: We report on the demonstration of a broadband (60 GHz), spectrally hitless, compact (20 ��m x 40 ��m), fast (7 ns) electro-optical switch. The device is composed of two coupled resonant cavities, each with an independently addressable PIN diode. This topology enables operation of the switch without perturbing adjacent channels in a wavelength division multiplexing (WDM) system. ��2009 Optical Society of America OCIS codes: (250.3140) Integrated optoelectronic circuits (250.6715) Switching (230.4555) Coupled resonators (230.3120) Integrated optics devices. References and links 1. A. Shacham, K. Bergman, and L. P. Carloni, ���On the Design of a Photonic Network-on-Chip,��� in Proceedings of IEEE International Symposium on Networks-on-Chips (IEEE, 2007), pp. 53���64. 2. C. Batten, A. Joshi, J. Orcutt, A. Khilo, B. Moss, C. Holzwarth, M. Popovic, H. Li, H. Smith, J. Hoyt, F. Kartner, R. Ram, V. Stojanovic, and K. Asanovic, ���Building Manycore Processor-to-DRAM Networks with Monolithic Silicon Photonics,��� in 16th IEEE Symposium on High Performance Interconnects, 2008. HOTI '08, 21���30, 26���28 Aug. 2008. 3. International Technology Roadmap for Semiconductors, (ITRS 2007) http://www.itrs.net/Links/2007ITRS/2007_Chapters/2007_Interconnect.pdf. 4. A. W. Poon, X. Luo, F. Xu, and H. Chen, ���Cascaded microresonator-based matrix switch for silicon on-chip optical interconnection,��� Proc. IEEE 97(7), 1216���1238 (2009). 5. B. G. Lee, B. A. Small, K. Bergman, Q. Xu, and M. Lipson, ���Transmission of high-data-rate optical signals through a micrometer-scale silicon ring resonator,��� Opt. Lett. 31(18), 2701���2703 (2006). 6. F. J. Mesa-Martinez, M. Brown, J. Nayfach-Battilana, and J. Renau, ���Measuring performance, power, and temperature from real processors,��� in Proc. of the 2007 Workshop on Experimental Computer Science, San Diego, CA, Jun. 13 - 14, 2007. ExpCS '07. ACM, New York, NY. 7. Y. Goebuchi, T. Ka, and Y. Kokubun, ���Fast and Stable Wavelength-Selective Switch Using Double-Series Coupled Dielectric Microring Resonator,��� IEEE Photon. Technol. Lett. 18(3), 538���540 (2006). 8. Y. Goebuchi, M. Hisada, T. Kato, and Y. Kokubun, ���Optical cross-connect circuit using hitless wavelength selective switch,��� Opt. Express 16(2), 535���548 (2008). 9. M. A. Popovi��, T. Barwicz, F. Gan, M. S. Dahlem, C. W. Holzwarth, P. T. Rakich, H. I. Smith, E. P. Ippen, and F. X. K��rtner, ���Transparent wavelength switching of resonant filters,��� presented at Conference on Lasers and Electro-Optics (CLEO), Baltimore, MD, May 10, 2007, postdeadline paper CPDA2. 10. Y. Vlasov, W. M. J. Green, and F. Xia, ���High-throughput silicon nanophotonic wavelength-insensitive switch for on-chip optical networks,��� Nat. Photonics 2(4), 242���246 (2008). 11. H. A. Haus, M. A. Popovi��, and M. R. Watts, ���Broadband Hitless Bypass Switch for Integrated Photonic Circuits,��� IEEE Photon. Technol. Lett. 18(10), 1137���1139 (2006). 12. S. Y. Cho, and R. Soref, ���Interferometric microring-resonant 2 x 2 optical switches,��� Opt. Express 16(17), 13304���13314 (2008). 13. M. Watts, D. C. Trotter, and R. W. Young, ���Maximally Confined High-Speed Second-Order Silicon Microdisk Switches,��� in National Fiber Optic Engineers Conference, OSA Technical Digest (CD) (Optical Society of America, 2008), paper PDP14. 14. C. Li, X. Luo, and A. W. Poon, ���Dual-microring-resonator electro-optic logic switches on a silicon chip,��� Semicond. Sci. Technol. 23(6), 064010 (2008). 15. S. Manipatruni, Q. Xu, B. Schmidt, J. Shakya, and M. Lipson, ���High Speed Carrier Injection 18 Gb/s Silicon Micro-ring Electro-optic Modulator,��� in The 20th Annual Meeting of the IEEE Lasers and Electro-Optics Society (IEEE, 2007), p. 537. 16. M. W. Geis, S. J. Spector, R. C. Williamson, and T. M. Lyszczarz, ���Submicrosecond Submilliwatt Silicon-on- Insulator Thermooptic Switch,��� IEEE Photon. Technol. Lett. 16(11), 2514���2516 (2004). 17. R. Orta, P. Savi, R. Tascone, and D. Trinchero, ���Synthesis of Multiple-Ring-Resonator Filters for Optical Systems,��� IEEE Photon. Technol. Lett. 7(12), 1447���1449 (1995). #117101 - $15.00 USD Received 11 Sep 2009 revised 12 Nov 2009 accepted 16 Nov 2009 published 23 Nov 2009 (C) 2009 OSA 7 December 2009 / Vol. 17, No. 25 / OPTICS EXPRESS 22271