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A Multimode Interference Coupler with Exponentially Tapered Waveguide
By
Progress In Electromagnetics Research C, Vol. 1, 113-122, 2008
Abstract
An exponentially tapered structure is introduced into multimode interference (MMI) devices. Compared with a parabolically tapered structure,which has been successfully used in MMI devices, this structure can further reduce the length of these devices. The performances of the 1 × 2 MMI coupler with exponentially tapered structure,such as the optical transmission,the wavelength response and the fabrication tolerance,are investigated by the 2D finite difference beam propagation method. Results show that the exponentially tapered MMI coupler exhibits a similar property to that with a parabolically tapered structure.
Citation
Ji-Jiang Wu , "A Multimode Interference Coupler with Exponentially Tapered Waveguide," Progress In Electromagnetics Research C, Vol. 1, 113-122, 2008.
doi:10.2528/PIERC08012406
http://www.jpier.org/PIERC/pier.php?paper=08012406
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