Abstract

It is shown theoretically that selective perturbation by electrorefractive effect of the even-order modes in III-V semiconductor multimode interference couplers gives rise to high-performance optical switching. The calculated performance of the proposed switch is 3.4 GHz/Vmm, compared to 0.85 GHz/Vmm for an equivalent Mach-Zehnder interferometer (MZI) switch. The effects of electroabsorption and dimension variations are analyzed to demonstrate the feasibility of the proposed device.

[IEEE ]

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  1. P. A. Besse, M. Bachmann, H. Melchior, L. B. Soldano and M. K. Smit, "Optical bandwidth and fabrication tolerances of multimode interference couplers", J. Lightwave Technol., vol. 12, pp. 1004-1009, Dec. 1994.
  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. 615-627, Apr. 1995.
  3. M. Rajarajan, B. M. A. Rahman and K. T. V. Gratton, "A rigorous comparison of the performance of directional couplers with multimode interference devices", J. Lightwave Technol., vol. 17, pp. 243-248, Feb. 1999.

J. Lightwave Technol. (3)

P. A. Besse, M. Bachmann, H. Melchior, L. B. Soldano and M. K. Smit, "Optical bandwidth and fabrication tolerances of multimode interference couplers", J. Lightwave Technol., vol. 12, pp. 1004-1009, Dec. 1994.

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. 615-627, Apr. 1995.

M. Rajarajan, B. M. A. Rahman and K. T. V. Gratton, "A rigorous comparison of the performance of directional couplers with multimode interference devices", J. Lightwave Technol., vol. 17, pp. 243-248, Feb. 1999.

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