Multimode-Interference-Based Waveguide Crossing in Two-Dimensional Cubic Photonic Crystal

Yih Bin Lin; Jen Hao Cheng; Rei Shin Chen; Ting Chung Yu; Ju Feng Liu; Han Bin Lin

doi:10.4028/www.scientific.net/AMM.284-287.2876

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 284-287Multimode-Interference-Based Waveguide Crossing in...

Multimode-Interference-Based Waveguide Crossing in Two-Dimensional Cubic Photonic Crystal

Abstract:

A novel design of photonic crystal waveguide crossing based on multimode-interference (MMI) structure is proposed. Two structures of difference device lengths are simulated and studied. The proposed structures have high transmission efficiency for a wide bandwidth. The crosstalk is -26dB with device length of 12 lattice periods and -39dB with device length of 24 lattice periods. The plane wave expansion method and finite-difference time-domain method are used to calculate the modal dispersion curve and field propagation, respectively. The proposed MMI-based waveguide crossing has the potential to be practical in high-density optical integrated circuits.

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Periodical:

Applied Mechanics and Materials (Volumes 284-287)

Pages:

2876-2879

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.284-287.2876

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Online since:

January 2013

Authors:

Yih Bin Lin, Jen Hao Cheng, Rei Shin Chen, Ting Chung Yu, Ju Feng Liu, Han Bin Lin

Keywords:

Multimode-Interference (MMI), Photonic Crystal (PC), Waveguide Crossing

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