期刊
APPLIED OPTICS
卷 60, 期 9, 页码 2640-2646出版社
OPTICAL SOC AMER
DOI: 10.1364/AO.418942
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类别
资金
- Science and Engineering Research Board
- Ministry of Electronics and Information Technology
- Department of Science and Technology, Ministry of Science and Technology, India
This paper presents a hybrid mode and wavelength division (de)multiplexer (MDM-WDM) based on the silicon-on-insulator platform using the grating assisted contra-directional coupling principle. The proposed device can (de)multiplex six channels with two wavelengths and three modes. Simulation and analysis show that the structure exhibits good performance with low insertion loss, high return loss, high extinction ratio, and low crosstalk.
This paper presents a hybrid mode and wavelength division (de)multiplexer (MDM-WDM), based on the siliconon-insulator platform using the grating assisted contra-directional coupling principle. The proposed hybrid MDM-WDM is able to (de)multiplex six channels with two wavelengths and three modes. The proposed device is designed by cascading three grating assisted coupler sections. Each coupler section is dedicated to reflecting a specific mode at two wavelengths. The operation of the proposed design is simulated by the 2.5D finite-difference time-domain technique. The analysis shows that the proposed device structure exhibits an insertion loss of <0.55 dB, return loss of >12.81 dB, extinction ratio of >15.49 dB, and crosstalk of < -12.74 dB. A fabrication tolerance study for the MDM-WDM device is also performed by changing the inter waveguide distance between the respective multimode bus waveguide and the single-mode waveguide. (C) 2021 Optical Society of America
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