1 May 2004 Cascaded multimode interference phased array structures for dense wavelength division multiplexing applications
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Optical Engineering, 43(5), (2004). doi:10.1117/1.1695404
Abstract
We propose a new approach for the design of phased array (PHASAR) demultiplexers. This approach is based on cascading multimode interference (MMI) PHASAR structures with different frequency responses to obtain an optimized performance. We show that with this approach, we can improve the uniformity of the overall demultiplexer (DMUX), especially when a large number of output ports is required. The design of a 64-output DMUX with only 0.2-dB uniformity is thus demonstrated compared to a 7-dB uniformity of a two-cascaded eight-channel demultiplexer, also shown in this work. This approach allows the designer to optimize the structure design, considering both the insertion loss and the uniformity.
Ayman M. Yehia, Diaa Abdel-Maguid M. Khalil, "Cascaded multimode interference phased array structures for dense wavelength division multiplexing applications," Optical Engineering 43(5), (1 May 2004). https://doi.org/10.1117/1.1695404
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