Ultrahigh speed all-optical AND logic gate using integrated silicon-based MZI device |
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Authors: | Jian-Wei Wu |
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Affiliation: | 1. Institute of Optoelectronics Science and College of Science, Hohai University , Nanjing 210098, P.R. China;2. State Key Laboratory of Transient Optics and Photonics, Chinese Academy of Sciences , Xi'an 710119, P.R. China jwwu@hhu.edu.cn |
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Abstract: | In this paper, we present a device with a silicon-on-insulator (SOI) based symmetrical Mach–Zehnder interferometer (MZI) structure to perform the ultrahigh speed all-optical AND logic gate function. Simulation results show that, while the operation speed is at a bit rate of 200 Gbit s?1, the output parameters including extinction ratio and eye-opening ratio for outcome AND logic gate signal can, respectively, reach as high as ~12.8 dB, and ~0.94 in the case of a 5 mm long SOI waveguide by means of judiciously adjusting the initial conditions, such as incident signal and probe continuous-wave (CW) powers. |
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Keywords: | integrated optics silicon-on-insulator technology Mach–Zehnder interferometer AND logic gate |
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