标题: Taper-Integrated Multimode-Interference Based Waveguide Crossing Design
作者: Chen, Chyong-Hua
Chiu, Chia-Hsiang
光电工程学系
Department of Photonics
关键字: High index contrast;multimode interference;silicon wire waveguides;waveguide crossings
公开日期: 1-十一月-2010
摘要: We present a design technique for a compact waveguide crossing by using a 90 multimode-interference (MMI) based waveguide crossing sandwiched by four identical miniaturized tapers where the power of the input guided mode is coupled into even modes of the MMI section at a specific power ratio and with different phases, thereby reducing the dimension of this waveguide crossing with imperceptible loss and crosstalk. Using the finite difference time domain method, we demonstrate that the MMI-based waveguide crossing embedded in short Gaussian tapers has a size 5426 nm x 5426 nm, insertion loss 0.21 dB, and crosstalk -44.4 dB at the wavelength of 1550 nm and broad transmission spectrum ranging from 1500 to 1600 nm.
URI: http://dx.doi.org/10.1109/JQE.2010.2057410
http://hdl.handle.net/11536/32010
ISSN: 0018-9197
DOI: 10.1109/JQE.2010.2057410
期刊: IEEE JOURNAL OF QUANTUM ELECTRONICS
Volume: 46
Issue: 11
起始页: 1656
结束页: 1661
显示于类别:Articles


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