Skip to main content
Log in

MMI-based all-optical multi-input XOR and XNOR logic gates using nonlinear directional coupler

  • Published:
Optical and Quantum Electronics Aims and scope Submit manuscript

Abstract

We propose an all-optical 2-input XOR logic gate based on multimode interference and employ it as a basic structure in order to develop 3- and 4-input XOR logic gates. A 3 dB MMI coupler has been designed to be used as 2-input XOR logic gate. The integration of optical 2-input XOR gates encounters with the phase matching issues. Therefore, a nonlinear directional coupler is associated to produce a relative phase shift of π between the coupled and uncoupled branches. Such phase shift is cancelled with launching a simultaneous high intensity control field. Also, by assigning logic 1 to one of inputs in n-input XOR structure, the (n − 1)-input XNOR logic gate has been achieved. Two dimensional beam propagation method has been used to simulate and verify the performance of proposed all-optical 2-, 3- and 4-input XOR logic gates. Simulation results show that the proposed structure is almost insensitive to fabrication process tolerances.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6

Similar content being viewed by others

References

  • Bahrami, A., Rostami, A.: A proposal for 1 × 8 all-optical switch using multimode interference. Opt. Appl. 41, 165–172 (2011)

    Google Scholar 

  • Bahrami, A., Rostami, A., Nazari, F., Abbasian, K.: EIT-based MZ-MMI all-optical switch. J. Mod. Opt. 57, 2021–2026 (2010)

    Article  MATH  ADS  Google Scholar 

  • Bahrami, A., Mohammadnejad, S., Rostami, A.: All-optical multi-mode interference switches using non-linear directional coupler as a passive phase shifter. Fiber Integr. Opt. 30, 139–150 (2011a)

    Article  Google Scholar 

  • Bahrami, A., Rostami, A., Nazari, F.: MZ-MMI-based all-optical switch using nonlinear coupled waveguides. Optik 122, 1787–1790 (2011b)

    Article  ADS  Google Scholar 

  • Chang, W., Lien, C., Lin, H., Wang, H.: Design of the novel optoelectronic gates based on the multimode interference. J. Opt. Commun. 24, 35–39 (2003)

    Article  Google Scholar 

  • Deng, N., Chan, K., Chan, C.K., Chen, L.K.: An all-optical XOR logic gate for high-speed RZ-DPSK signals by FWM in semiconductor optical amplifier. IEEE J. Sel. Top. Quantum Electron. 12, 702–707 (2006)

    Article  Google Scholar 

  • Husko, C., Vo, T.D., Corcoran, B., Li, J., Krauss, T.F., Eggleton, B.J.: Ultracompact all-optical XOR logic gate in a slow-light silicon photonic crystal waveguide. Opt. Express 19, 20681–20690 (2011)

    Article  ADS  Google Scholar 

  • Ishizaka, Y., Kawaguchi, Y., Saitoh, K., Koshiba, M.: Design of optical XOR, XNOR, NAND, and OR logic gates based on multi-mode interference waveguides for binary-phase-shift-keyed signal. J. Lightwave Technol. 29, 2836–2846 (2011)

    Article  ADS  Google Scholar 

  • Li, L., Sun, J.: Theoretical investigation of phase-based all-optical logic gates based on AlGaAs microring resonators. J. Mod. Opt. 59, 1149–1153 (2012)

    Article  ADS  Google Scholar 

  • Li, F., Vo, T.D., Husko, C., Pelusi, M., Xu, D.X., Densmore, A., Ma, R., Janz, S., Eggleton, B.J., Moss, D.J.: All-optical XOR logic gate for 40 Gb/s DPSK signals via FWM in a silicon nanowire. Opt. Express 19, 20364–20371 (2011)

    Article  ADS  Google Scholar 

  • 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)

    Article  ADS  Google Scholar 

  • Mohammadnejad, S., Farrokhi Chaykandi, Z., Bahrami, A.: MMI-based simultaneous all-optical XOR–NAND–OR and XNOR–NOT multilogic gate for phase-based signals. IEEE J. Quantum Electron. 50, 1014–1018 (2014)

    Article  ADS  Google Scholar 

  • Wang, J., Sun, Q., Sun, J.: All-optical 40 Gbit/s CSRZ-DPSK logic XOR gate and format conversion using four-wave mixing. Opt. Express 17, 12555–12563 (2009)

    Article  ADS  Google Scholar 

  • Whang, A.J., Chao, S.M.: Multimode interference all-optical logic gates via partially nonlinear propagation region. Opt. Rev. 10, 346–351 (2003)

    Article  Google Scholar 

  • Wu, J.W., Sarma, A.K.: Ultrafast all-optical XOR logic gate based on a symmetrical Mach-Zehnder interferometer employing SOI waveguides. Opt. Commun. 283, 2914–2917 (2010)

    Article  ADS  Google Scholar 

  • Zhang, M., Wang, L., Peida, Y.: All-optical XOR logic gates: technologies and experiment demonstrations. IEEE Commun. Mag. 43, 19–24 (2005)

    Article  Google Scholar 

  • Zhangjian, L., Yao, Z., Baojun, L.: Terahertz photonic crystal switch in silicon based on self-imaging principle. Opt. Express 14, 3887–3892 (2006)

    Article  Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Ali Bahrami.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Farrokhi Chaykandi, Z., Bahrami, A. & Mohammadnejad, S. MMI-based all-optical multi-input XOR and XNOR logic gates using nonlinear directional coupler. Opt Quant Electron 47, 3477–3489 (2015). https://doi.org/10.1007/s11082-015-0224-0

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s11082-015-0224-0

Keywords

Navigation