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Journal of Lightwave Technology

Journal of Lightwave Technology

| A JOINT IEEE/OSA PUBLICATION

  • Vol. 30, Iss. 7 — Apr. 1, 2012
  • pp: 944–952

Broadband Mach–Zehnder Switch for Photonic Networks on Chip

Giovanna Calò, Antonella D'Orazio, and Vincenzo Petruzzelli

Journal of Lightwave Technology, Vol. 30, Issue 7, pp. 944-952 (2012)


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Abstract

In this paper, we propose a broadband silicon Mach–Zehnder switch (MZS) for wavelength division multiplexing applications on photonic networks on chip. The proposed reconfigurable switch is based on a single-stage three-waveguide interferometric configuration in which the phase shift is achieved via a p-i-n diode. The device is analyzed by the coupled-mode theory and by the finite-difference beam propagation method. The proposed configuration leads to a considerable increase in the bandwidth with respect to the conventional MZS. For example, the two-waveguide MZS with a gap g=0.30 μm between the two coupled waveguides exhibits bandwidth Δλ =60 nm, crosstalk CT = - 15 dB, and insertion loss IL = 1.1 dB. Conversely, a bandwidth Δλ =115 nm is achieved for the three-waveguide configuration to parity of the other parameters.

© 2012 IEEE

Citation
Giovanna Calò, Antonella D'Orazio, and Vincenzo Petruzzelli, "Broadband Mach–Zehnder Switch for Photonic Networks on Chip," J. Lightwave Technol. 30, 944-952 (2012)
http://www.opticsinfobase.org/jlt/abstract.cfm?URI=jlt-30-7-944

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