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一种基于多槽波导结构的四通道绿色/红色解复用器

A Four Green TM/Red TE Demultiplexer Based on Multi Slot-Waveguide Structures.

作者信息

Malka Dror

机构信息

Faculty of Engineering, Holon Institute of Technology (HIT), Holon 5810201, Israel.

出版信息

Materials (Basel). 2020 Jul 20;13(14):3219. doi: 10.3390/ma13143219.

DOI:10.3390/ma13143219
PMID:32698353
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7412051/
Abstract

A four green transverse magnetic (TM)/red transverse electric (TE) light wavelength demultiplexer device, based on multi slot-waveguide (SW) structures is demonstrated. The device aims to demultiplex wavelengths in the green/red light range with wavelengths of 530, 540, 550, and 560 nm; 630, 640, 650, and 660 nm. This means that the device functions as a 1 × 4 demultiplexer for each polarization mode (TE/TM). The controlling of the light switching between two closer segment SWs under the TM/TE polarization mode was studied by designing a suitable SW structure and setting the right segment length to fit the coupling lengths of the operating wavelengths. The device is composed of six-segment SW units and six S-bends (SB) SW. The key SW and SB parameters were optimized and determined by a full vectorial beam propagation method (FV-BPM). Results show power losses better than 0.138 dB, crosstalk better than -21.14 dB, and an optical spectrum smaller than 9.39 nm, with an overall compact size of 104.5 µm. The device can be integrated in wavelength division multiplexing (WDM) for increasing data bit rate in a visible light communication (VLC) system.

摘要

展示了一种基于多槽波导（SW）结构的四通道绿色横向磁（TM）/红色横向电（TE）光波长解复用器器件。该器件旨在对绿光/红光范围内波长为530、540、550和560纳米；630、640、650和660纳米的波长进行解复用。这意味着该器件对于每种偏振模式（TE/TM）都起到1×4解复用器的作用。通过设计合适的SW结构并设置正确的段长度以匹配工作波长的耦合长度，研究了在TM/TE偏振模式下两个相邻段SW之间的光开关控制。该器件由六段SW单元和六个S形弯曲（SB）SW组成。关键的SW和SB参数通过全矢量光束传播方法（FV-BPM）进行了优化和确定。结果显示功率损耗优于0.138分贝，串扰优于-21.14分贝，光谱小于9.39纳米，整体紧凑尺寸为104.5微米。该器件可集成到波分复用（WDM）中，以提高可见光通信（VLC）系统中的数据比特率。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5c8e/7412051/99d2259d0041/materials-13-03219-g012.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5c8e/7412051/98f528a1c000/materials-13-03219-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5c8e/7412051/4cc50ecbcba1/materials-13-03219-g002.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5c8e/7412051/6bae42473637/materials-13-03219-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5c8e/7412051/f9af9e44d24b/materials-13-03219-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5c8e/7412051/ecf3ff2a3203/materials-13-03219-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5c8e/7412051/e7a66895f264/materials-13-03219-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5c8e/7412051/a3ff6f7c7535/materials-13-03219-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5c8e/7412051/be8a6c32212c/materials-13-03219-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5c8e/7412051/658fe40bb795/materials-13-03219-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5c8e/7412051/0338daea5b04/materials-13-03219-g011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5c8e/7412051/99d2259d0041/materials-13-03219-g012.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5c8e/7412051/98f528a1c000/materials-13-03219-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5c8e/7412051/4cc50ecbcba1/materials-13-03219-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5c8e/7412051/c554eb52d068/materials-13-03219-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5c8e/7412051/6bae42473637/materials-13-03219-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5c8e/7412051/f9af9e44d24b/materials-13-03219-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5c8e/7412051/ecf3ff2a3203/materials-13-03219-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5c8e/7412051/e7a66895f264/materials-13-03219-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5c8e/7412051/a3ff6f7c7535/materials-13-03219-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5c8e/7412051/be8a6c32212c/materials-13-03219-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5c8e/7412051/658fe40bb795/materials-13-03219-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5c8e/7412051/0338daea5b04/materials-13-03219-g011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5c8e/7412051/99d2259d0041/materials-13-03219-g012.jpg

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