Abstract
AbstractIn this letter, we propose a novel 3 × 3 photonic switch based on multimode interference. The power switching between multiple output ports are controlled by changing the refractive indices of the index‐modulated regions where such self‐images occurred. For a more realistic design, the switching characteristics for this structure are numerically investigated by the finite‐difference beam propagation method (FD‐BPM). Simulation results less insertion loss and low crosstalk level of −34dB. Moreover, detailed investigations with design rules of MMI structure have been considered. © 2002 Wiley Periodicals, Inc. Microwave Opt Technol Lett 33: 174–176, 2002; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.10268
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