Please use this identifier to cite or link to this item: http://localhost/handle/Hannan/604684
Title: Graphene-Based Floating-Gate Nonvolatile Optical Switch
Authors: Yan Li;Hui Yu;Tingge Dai;Jianfei Jiang;Gencheng Wang;Longzhi Yang;Wanjun Wang;Jianyi Yang;Xiaoqing Jiang
subject: nonvolatile|graphene|Integrated optics|floating gate|optical switch
Year: 2016
Publisher: IEEE
Abstract: We proposed a nonvolatile optical waveguide switch by utilizing a floating-gate (FG) configuration whose FG layer is a single-layer graphene. The switching signal can be removed after the optical switching is accomplished. The propagation state of light then can be retained by charges trapped in the graphene layer until the next erasing signal. Depending on waveforms of driving signals, the device can work as either a phase shifter or an intensity switch. In the phase shifter mode, a 646-μm-long device can achieve a phase shift of π. Corresponding energy consumptions to program/erase, the π phase shift is 82.8 and 118.2 pJ, respectively. In the intensity switch mode, a 328-μm-long device is able to attenuate the light by 20 dB. Energies consumed by the programming and the erasing operations are 35.7 and 45.4 pJ, respectively.
URI: http://localhost/handle/Hannan/136704
http://localhost/handle/Hannan/604684
ISSN: 1041-1135
1941-0174
volume: 28
issue: 3
Appears in Collections:2016

Files in This Item:
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Title: Graphene-Based Floating-Gate Nonvolatile Optical Switch
Authors: Yan Li;Hui Yu;Tingge Dai;Jianfei Jiang;Gencheng Wang;Longzhi Yang;Wanjun Wang;Jianyi Yang;Xiaoqing Jiang
subject: nonvolatile|graphene|Integrated optics|floating gate|optical switch
Year: 2016
Publisher: IEEE
Abstract: We proposed a nonvolatile optical waveguide switch by utilizing a floating-gate (FG) configuration whose FG layer is a single-layer graphene. The switching signal can be removed after the optical switching is accomplished. The propagation state of light then can be retained by charges trapped in the graphene layer until the next erasing signal. Depending on waveforms of driving signals, the device can work as either a phase shifter or an intensity switch. In the phase shifter mode, a 646-μm-long device can achieve a phase shift of π. Corresponding energy consumptions to program/erase, the π phase shift is 82.8 and 118.2 pJ, respectively. In the intensity switch mode, a 328-μm-long device is able to attenuate the light by 20 dB. Energies consumed by the programming and the erasing operations are 35.7 and 45.4 pJ, respectively.
URI: http://localhost/handle/Hannan/136704
http://localhost/handle/Hannan/604684
ISSN: 1041-1135
1941-0174
volume: 28
issue: 3
Appears in Collections:2016

Files in This Item:
File Description SizeFormat 
7307136.pdf942.95 kBAdobe PDFThumbnail
Preview File
Title: Graphene-Based Floating-Gate Nonvolatile Optical Switch
Authors: Yan Li;Hui Yu;Tingge Dai;Jianfei Jiang;Gencheng Wang;Longzhi Yang;Wanjun Wang;Jianyi Yang;Xiaoqing Jiang
subject: nonvolatile|graphene|Integrated optics|floating gate|optical switch
Year: 2016
Publisher: IEEE
Abstract: We proposed a nonvolatile optical waveguide switch by utilizing a floating-gate (FG) configuration whose FG layer is a single-layer graphene. The switching signal can be removed after the optical switching is accomplished. The propagation state of light then can be retained by charges trapped in the graphene layer until the next erasing signal. Depending on waveforms of driving signals, the device can work as either a phase shifter or an intensity switch. In the phase shifter mode, a 646-μm-long device can achieve a phase shift of π. Corresponding energy consumptions to program/erase, the π phase shift is 82.8 and 118.2 pJ, respectively. In the intensity switch mode, a 328-μm-long device is able to attenuate the light by 20 dB. Energies consumed by the programming and the erasing operations are 35.7 and 45.4 pJ, respectively.
URI: http://localhost/handle/Hannan/136704
http://localhost/handle/Hannan/604684
ISSN: 1041-1135
1941-0174
volume: 28
issue: 3
Appears in Collections:2016

Files in This Item:
File Description SizeFormat 
7307136.pdf942.95 kBAdobe PDFThumbnail
Preview File