Polarization Splitting Grating Coupler for Optical Antenna of LiDARs Consisting of Two Gratings Coupling Light in a Perfectly Vertical Direction

Polarization Splitting Grating Coupler for Optical Antenna of LiDARs Consisting of Two Gratings Coupling Light in a Perfectly Vertical Direction

Grating couplers (GCs) are devices for transmitting and receiving the light propagated in a waveguide in silicon photonic integrated circuits (PICs). In this study, we propose a polarization splitting GC (PSGC) for the optical antenna of light detection and ranging (LiDAR). The PSGC was designed on...

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Bibliographic Details
Main Authors: Tetsuya Shimogaki, Hikaru Fukushima, Daisuke Inoue, Tadashi Ichikawa, Tatsuya Yamashita
Format: Article
Language:English
Published: IEEE 2021-01-01
Series:IEEE Photonics Journal
Subjects:
Silicon nanophotonics
Sensors
Online Access:https://ieeexplore.ieee.org/document/9430745/
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spelling doaj-1f691cd63ba94751a831b6e8e35d94712021-06-01T23:00:06ZengIEEEIEEE Photonics Journal1943-06552021-01-0113311110.1109/JPHOT.2021.30799339430745Polarization Splitting Grating Coupler for Optical Antenna of LiDARs Consisting of Two Gratings Coupling Light in a Perfectly Vertical DirectionTetsuya Shimogaki0https://orcid.org/0000-0001-7386-5871Hikaru Fukushima1Daisuke Inoue2https://orcid.org/0000-0003-3926-4903Tadashi Ichikawa3Tatsuya Yamashita4Toyota Central R&D Labs., Inc., Aichi, JapanToyota Central R&D Labs., Inc., Aichi, JapanToyota Central R&D Labs., Inc., Aichi, JapanToyota Central R&D Labs., Inc., Aichi, JapanToyota Central R&D Labs., Inc., Aichi, JapanGrating couplers (GCs) are devices for transmitting and receiving the light propagated in a waveguide in silicon photonic integrated circuits (PICs). In this study, we propose a polarization splitting GC (PSGC) for the optical antenna of light detection and ranging (LiDAR). The PSGC was designed on the basis of two GCs coupling in a perfectly vertical direction. Our experiment demonstrated that the designed PSGC transmitted a polarization-multiplexed beam. The transmitting and receiving efficiencies of the optical antenna consists of lenses and PSGCs were calculated, and then the optical parameter for maximizing them was clarified.https://ieeexplore.ieee.org/document/9430745/Silicon nanophotonicsSensors
collection DOAJ
language English
format Article
sources DOAJ
author Tetsuya Shimogaki
Hikaru Fukushima
Daisuke Inoue
Tadashi Ichikawa
Tatsuya Yamashita
spellingShingle Tetsuya Shimogaki
Hikaru Fukushima
Daisuke Inoue
Tadashi Ichikawa
Tatsuya Yamashita
Polarization Splitting Grating Coupler for Optical Antenna of LiDARs Consisting of Two Gratings Coupling Light in a Perfectly Vertical Direction
IEEE Photonics Journal
Silicon nanophotonics
Sensors
author_facet Tetsuya Shimogaki
Hikaru Fukushima
Daisuke Inoue
Tadashi Ichikawa
Tatsuya Yamashita
author_sort Tetsuya Shimogaki
title Polarization Splitting Grating Coupler for Optical Antenna of LiDARs Consisting of Two Gratings Coupling Light in a Perfectly Vertical Direction
title_short Polarization Splitting Grating Coupler for Optical Antenna of LiDARs Consisting of Two Gratings Coupling Light in a Perfectly Vertical Direction
title_full Polarization Splitting Grating Coupler for Optical Antenna of LiDARs Consisting of Two Gratings Coupling Light in a Perfectly Vertical Direction
title_fullStr Polarization Splitting Grating Coupler for Optical Antenna of LiDARs Consisting of Two Gratings Coupling Light in a Perfectly Vertical Direction
title_full_unstemmed Polarization Splitting Grating Coupler for Optical Antenna of LiDARs Consisting of Two Gratings Coupling Light in a Perfectly Vertical Direction
title_sort polarization splitting grating coupler for optical antenna of lidars consisting of two gratings coupling light in a perfectly vertical direction
publisher IEEE
series IEEE Photonics Journal
issn 1943-0655
publishDate 2021-01-01
description Grating couplers (GCs) are devices for transmitting and receiving the light propagated in a waveguide in silicon photonic integrated circuits (PICs). In this study, we propose a polarization splitting GC (PSGC) for the optical antenna of light detection and ranging (LiDAR). The PSGC was designed on the basis of two GCs coupling in a perfectly vertical direction. Our experiment demonstrated that the designed PSGC transmitted a polarization-multiplexed beam. The transmitting and receiving efficiencies of the optical antenna consists of lenses and PSGCs were calculated, and then the optical parameter for maximizing them was clarified.
topic Silicon nanophotonics
Sensors
url https://ieeexplore.ieee.org/document/9430745/
work_keys_str_mv AT tetsuyashimogaki polarizationsplittinggratingcouplerforopticalantennaoflidarsconsistingoftwogratingscouplinglightinaperfectlyverticaldirection
AT hikarufukushima polarizationsplittinggratingcouplerforopticalantennaoflidarsconsistingoftwogratingscouplinglightinaperfectlyverticaldirection
AT daisukeinoue polarizationsplittinggratingcouplerforopticalantennaoflidarsconsistingoftwogratingscouplinglightinaperfectlyverticaldirection
AT tadashiichikawa polarizationsplittinggratingcouplerforopticalantennaoflidarsconsistingoftwogratingscouplinglightinaperfectlyverticaldirection
AT tatsuyayamashita polarizationsplittinggratingcouplerforopticalantennaoflidarsconsistingoftwogratingscouplinglightinaperfectlyverticaldirection
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