Demonstration of photonic micro-ring resonator based digital bit magnitude comparator

  • Foo Kui Law
  • M. Rakib UddinEmail author
  • Hasnul Hashim
  • Yong Hyub Won


This paper details the novel design, simulation and analysis of the digital photonic single-bit magnitude comparator with the utilization of silicon micro-ring resonator as its core component. The micro-ring resonator uses electro-optic carrier injection modulation properties with its ring waveguide being structured in PIN diode. Five micro-ring resonators are used in the proposed design, with each corresponds to the specific logic mode operation. This work also presents the time varying simulation, where two predetermined 1-bit input stream is injected into the circuit at the data rate of 1 Gbps, where its output is observed via oscilloscope, where results are obtained at the sampling rate of 1.6 THz. The timing diagram for the entire simulation is also shown together with additional results obtained from the simulation.


Photonics Digital comparator Micro-ring resonator 


  1. Allsop, T., Reeves, R., Webb, D.J., Bennion, I., Neal, R.: A high sensitivity refractometer based upon a long period grating Mach–Zehnder interferometer. Rev. Sci. Instrum. 73(4), 1702–1705 (2002)CrossRefADSGoogle Scholar
  2. Artundo, I., et al.: Selective optical broadcast component for reconfigurable multiprocessor interconnects. IEEE J. Sel. Top. Quantum Electron. 12(4), 828–837 (2006)CrossRefADSGoogle Scholar
  3. Baehr-Jones, T., Hochberg, M., Walker, C., Scherer, A.: High-Q optical resonators in silicon-on-insulator-based slot waveguides. Appl. Phys. Lett. 86(8), 081101 (2005)CrossRefADSGoogle Scholar
  4. Beggs, D.M., White, T.P., O’Faolain, L., Krauss, T.F.: Ultracompact and low-power optical switch based on silicon photonic crystals. Opt. Lett. 33(2), 147–149 (2008)CrossRefADSGoogle Scholar
  5. Bogaerts, W., et al.: Nanophotonic waveguides in silicon-on-insulator fabricated with CMOS technology. J. Light. Technol. 23(1), 401–412 (2005)MathSciNetCrossRefADSGoogle Scholar
  6. Caulfield, H.J., Dolev, S.: Why future supercomputing requires optics. Nat. Photonics 4(5), 261–263 (2010)CrossRefGoogle Scholar
  7. Hardy, J., Shamir, J.: Optics inspired logic architecture. Opt. Express 15(1), 150–165 (2007)CrossRefADSGoogle Scholar
  8. Jokerst, N.M., et al.: The heterogeneous integration of optical interconnections into integrated microsystems. IEEE J. Sel. Top. Quantum Electron. 9(2), 350–360 (2003)CrossRefADSGoogle Scholar
  9. Kui, L. F., Uddin, M. R., Musyiirah, N.: Digital electro-optic SR NAND latch. In: IEEE 15th Student Conference on, Research and Development (SCOReD), 2017, pp. 162–165: IEEEGoogle Scholar
  10. Kui, L.F., Uddin, M.R.: Photonic microring resonator modulated resonance response analysis. Opt. Quantum Electron. 49(8), 275 (2017). CrossRefGoogle Scholar
  11. Law, F., Uddin, M.R., Hashim, H., Hamid, Z.: Simulation and demonstration of electro-optic digital logic gates based on a single microring resonator. Opt. Quantum Electron. 49(12), 413 (2017). CrossRefGoogle Scholar
  12. Law, F.K., Uddin, M.R., Hashim, H.: Photonic D-type flip flop based on micro-ring resonator. Opt. Quantum Electron. 50(3), 119 (2018). CrossRefGoogle Scholar
  13. Lee, Y.L., et al.: All-optical AND and NAND gates based on cascaded second-order nonlinear 3 waveguide. Opt. Express 14(7), 2776–2782 (2006)CrossRefADSGoogle Scholar
  14. Li, C., et al.: Silicon photonic transceiver circuits with microring resonator bias-based wavelength stabilization in 65 nm CMOS. IEEE J. Solid-State Circuits 49(6), 1419–1436 (2014)CrossRefADSGoogle Scholar
  15. Liu, W., Yang, D., Shen, G., Tian, H., Ji, Y.: Design of ultra compact all-optical XOR, XNOR, NAND and OR gates using photonic crystal multi-mode interference waveguides. Opt. Laser Technol. 50, 55–64 (2013)CrossRefADSGoogle Scholar
  16. Liu, Z., et al.: Demonstration of an optical directed half-subtracter using integrated silicon photonic circuits. Appl. Opt. 57(10), 2564–2569 (2018)CrossRefADSGoogle Scholar
  17. Martínez, A., et al.: Ultrafast all-optical switching in a silicon-nanocrystal-based silicon slot waveguide at telecom wavelengths. Nano Lett. 10(4), 1506–1511 (2010)CrossRefADSGoogle Scholar
  18. Miller, D.A.: The role of optics in computing. Nat. Photonics 4(7), 406–407 (2010a)CrossRefADSGoogle Scholar
  19. Miller, D.A.: Are optical transistors the logical next step? Nat. Photonics 4(1), 3–5 (2010b)CrossRefADSGoogle Scholar
  20. Qiu, C., Gao, W., Soref, R., Robinson, J.T., Xu, Q.: Reconfigurable electro-optical directed-logic circuit using carrier-depletion micro-ring resonators. Opt. Lett. 39(24), 6767–6770 (2014)CrossRefADSGoogle Scholar
  21. Soljacic, M., Fan, S., Ibanescu, M., Johnson, S. G., Joannopoulos, J. D.: Mach-Zehnder Interferometer Using Photonic Band Gap Crystals. ed: Google Patents, (2005)Google Scholar
  22. Soref, R.: Reconfigurable integrated optoelectronics. Adv. Optoelectron. (2011). CrossRefGoogle Scholar
  23. Tian, Y., et al.: Proof of concept of directed OR/NOR and AND/NAND logic circuit consisting of two parallel microring resonators. Opt. Lett. 36(9), 1650–1652 (2011)CrossRefADSGoogle Scholar
  24. Tian, Y., et al.: Experimental realization of an optical digital comparator using silicon microring resonators. Nanophotonics 7(3), 669–675 (2018)CrossRefGoogle Scholar
  25. Xu, Q., Soref, R.: Reconfigurable optical directed-logic circuits using microresonator-based optical switches. Opt. Express 19(6), 5244–5259 (2011)CrossRefADSGoogle Scholar
  26. Xu, Q., Manipatruni, S., Schmidt, B., Shakya, J., Lipson, M.: 12.5 Gbit/s carrier-injection-based silicon micro-ring silicon modulators. Opt. Express 15(2), 430–436 (2007)CrossRefADSGoogle Scholar
  27. Yang, L., Guo, C., Zhu, W., Zhang, L., Sun, C.: Demonstration of a directed optical comparator based on two cascaded microring resonators. IEEE Photonics Technol. Lett. 27(8), 809–812 (2015)CrossRefADSGoogle Scholar
  28. Zhang, L., et al.: Demonstration of directed XOR/XNOR logic gates using two cascaded microring resonators. Opt. Lett. 35(10), 1620–1622 (2010)CrossRefADSGoogle Scholar
  29. Zhao, G., et al.: Tunable Fano resonances based on microring resonator with feedback coupled waveguide. Opt. Express 24(18), 20187–20195 (2016)CrossRefADSGoogle Scholar

Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  • Foo Kui Law
    • 1
  • M. Rakib Uddin
    • 1
    Email author
  • Hasnul Hashim
    • 1
  • Yong Hyub Won
    • 2
  1. 1.Electrical and Electronic Engineering Prograame Area, Faculty of EngineeringUniversiti Teknologi BruneiBandar Seri BegawanBrunei Darussalam
  2. 2.Electrical EngineeringKAISTDaejeonSouth Korea

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