Please use this identifier to cite or link to this item: http://localhost/handle/Hannan/659705
Title: Compact PSR Based on an Asymmetric Bi-level Lateral Taper in an Adiabatic Directional Coupler
Authors: Xin Tu;Ming Li;Jiejiang Xing;Hongyan Fu;Dongyu Geng
subject: silicon photonics|polarization splitter and rotator|Integration optical devices
Year: 2016
Publisher: IEEE
Abstract: We propose a compact silicon-on-insulator polarization splitter-rotator (PSR). The PSR consists of an asymmetric bilevel lateral taper in an adiabatic directional coupler and convert TM<sub>0</sub> mode to TE<sub>0</sub> mode directly without changing the input TE<sub>0</sub> mode. Compared to the previously reported PSR based on TM<sub>0</sub> -TE<sub>1</sub> polarization rotator connected to a TE<sub>1</sub>-TE<sub>0</sub> spatial mode order convertor in series, the proposed PSR has a one-step mode conversion, and is inherently more compact. Beside, since the conversion is fully adiabatic, it preserves the benefits of large fabrication tolerance and operation bandwidth. The simulation results show that the TM<sub>0</sub>-TE<sub>0</sub> polarization conversion loss is less than 0.5 dB from 1500 to 1700 nm and even less than 0.2 dB over the whole C-band. The TE<sub>0</sub> -TE<sub>0</sub> insertion loss is less than 0.01 dB from 1450 to 1750 nm. The polarization crosstalk is below -35 dB within 300-nm bandwidth.
URI: http://localhost/handle/Hannan/162707
http://localhost/handle/Hannan/659705
ISSN: 0733-8724
1558-2213
volume: 34
issue: 3
Appears in Collections:2016

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Title: Compact PSR Based on an Asymmetric Bi-level Lateral Taper in an Adiabatic Directional Coupler
Authors: Xin Tu;Ming Li;Jiejiang Xing;Hongyan Fu;Dongyu Geng
subject: silicon photonics|polarization splitter and rotator|Integration optical devices
Year: 2016
Publisher: IEEE
Abstract: We propose a compact silicon-on-insulator polarization splitter-rotator (PSR). The PSR consists of an asymmetric bilevel lateral taper in an adiabatic directional coupler and convert TM<sub>0</sub> mode to TE<sub>0</sub> mode directly without changing the input TE<sub>0</sub> mode. Compared to the previously reported PSR based on TM<sub>0</sub> -TE<sub>1</sub> polarization rotator connected to a TE<sub>1</sub>-TE<sub>0</sub> spatial mode order convertor in series, the proposed PSR has a one-step mode conversion, and is inherently more compact. Beside, since the conversion is fully adiabatic, it preserves the benefits of large fabrication tolerance and operation bandwidth. The simulation results show that the TM<sub>0</sub>-TE<sub>0</sub> polarization conversion loss is less than 0.5 dB from 1500 to 1700 nm and even less than 0.2 dB over the whole C-band. The TE<sub>0</sub> -TE<sub>0</sub> insertion loss is less than 0.01 dB from 1450 to 1750 nm. The polarization crosstalk is below -35 dB within 300-nm bandwidth.
URI: http://localhost/handle/Hannan/162707
http://localhost/handle/Hannan/659705
ISSN: 0733-8724
1558-2213
volume: 34
issue: 3
Appears in Collections:2016

Files in This Item:
File Description SizeFormat 
7349111.pdf624.5 kBAdobe PDFThumbnail
Preview File
Title: Compact PSR Based on an Asymmetric Bi-level Lateral Taper in an Adiabatic Directional Coupler
Authors: Xin Tu;Ming Li;Jiejiang Xing;Hongyan Fu;Dongyu Geng
subject: silicon photonics|polarization splitter and rotator|Integration optical devices
Year: 2016
Publisher: IEEE
Abstract: We propose a compact silicon-on-insulator polarization splitter-rotator (PSR). The PSR consists of an asymmetric bilevel lateral taper in an adiabatic directional coupler and convert TM<sub>0</sub> mode to TE<sub>0</sub> mode directly without changing the input TE<sub>0</sub> mode. Compared to the previously reported PSR based on TM<sub>0</sub> -TE<sub>1</sub> polarization rotator connected to a TE<sub>1</sub>-TE<sub>0</sub> spatial mode order convertor in series, the proposed PSR has a one-step mode conversion, and is inherently more compact. Beside, since the conversion is fully adiabatic, it preserves the benefits of large fabrication tolerance and operation bandwidth. The simulation results show that the TM<sub>0</sub>-TE<sub>0</sub> polarization conversion loss is less than 0.5 dB from 1500 to 1700 nm and even less than 0.2 dB over the whole C-band. The TE<sub>0</sub> -TE<sub>0</sub> insertion loss is less than 0.01 dB from 1450 to 1750 nm. The polarization crosstalk is below -35 dB within 300-nm bandwidth.
URI: http://localhost/handle/Hannan/162707
http://localhost/handle/Hannan/659705
ISSN: 0733-8724
1558-2213
volume: 34
issue: 3
Appears in Collections:2016

Files in This Item:
File Description SizeFormat 
7349111.pdf624.5 kBAdobe PDFThumbnail
Preview File