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Journal of Lightwave Technology

Journal of Lightwave Technology


  • Vol. 17, Iss. 2 — Feb. 1, 1999
  • pp: 243–

A Rigorous Comparison of the Performance of Directional Couplers with Multimode Interference Devices

M. Rajarajan, B. M. A. Rahman, and K. T. V. Grattan

Journal of Lightwave Technology, Vol. 17, Issue 2, pp. 243- (1999)

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The authors report, for the first time, a direct comparison between a directional coupler and a multimode interference-based device, in relation to their performance characteristics such as crosstalk, polarization dependence and the effect of fabrication tolerances. The coupling efficiency for a nonidentical coupler, produced inadvertently due to problems with fabrication tolerances, is also demonstrated. The vector finite element (FE) and the least squares boundary residual (LSBR) methods are employed as the numerical tools used in this simulation study.


M. Rajarajan, B. M. A. Rahman, and K. T. V. Grattan, "A Rigorous Comparison of the Performance of Directional Couplers with Multimode Interference Devices," J. Lightwave Technol. 17, 243- (1999)

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  1. Y. Kuhara et al., "Optical WDM tranceiver module using wavelength-selective coupler and WDM-PD for optical access networks," J. Lightwave Technol., vol. 15, pp. 704-709, 1997.
  2. L. B. Soldano and E. C. M. Pennings, "Optical multi-mode interference devices based on self-imaging: Principles and applications," J. Lightwave Technol., vol. 13, pp. 615-626, 1995.
  3. M. Rajarajan, B. M. A. Rahman, T. Wongcharoen, and K. T. V. Grattan, "Accurate analysis of MMI devices with two-dimensional confinement," J. Lightwave Technol., vol. 14, pp. 2078-2084, 1996.
  4. M. Bachman, P. A. Besse, and H. Melchior, "General self-imaging properties in N\times N multimode interference couplers including phase relations," Appl. Opt., vol. 33, pp. 3905-3911, 1994.
  5. T. F. Krauss, R. M. de La Rue, and P. J. R. Leybourn, "Impact of output coupler configuration on operating characteristics of semiconductor lasers," J. Lightwave Technol., vol. 13, pp. 1500-1507, 1995.
  6. B. M. A. Rahman and J. B. Davies, "Finite element solution of integrated optical waveguides," J. Lightwave Technol., vol. 2, pp. 682-688, 1984.

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