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Your search keyword '"Hikaru Fukushima"' showing total 2 results
Start Over Author "Hikaru Fukushima" Topic optics. light
2 results on '"Hikaru Fukushima"'

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

Author

Tetsuya Shimogaki, Hikaru Fukushima, Daisuke Inoue, Tadashi Ichikawa, and Tatsuya Yamashita

Subjects
Silicon nanophotonics, Sensors, Applied optics. Photonics, TA1501-1820, Optics. Light, QC350-467
Abstract

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.

Published
2021
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2. Polarization Splitting Grating Coupler for Optical Antenna of LiDARs Consisting of Two Gratings Coupling Light in a Perfectly Vertical Direction

Author

Hikaru Fukushima, Daisuke Inoue, Tadashi Ichikawa, Tatsuya Yamashita, and Tetsuya Shimogaki

Subjects
Diffraction, Physics::Optics, 02 engineering and technology, Grating, 01 natural sciences, Waveguide (optics), Silicon nanophotonics, 010309 optics, 020210 optoelectronics & photonics, Optics, 0103 physical sciences, Vertical direction, 0202 electrical engineering, electronic engineering, information engineering, Applied optics. Photonics, Electrical and Electronic Engineering, Computer Science::Information Theory, Physics, Coupling, Silicon photonics, business.industry, Sensors, Optical polarization, QC350-467, Optics. Light, Polarization (waves), Atomic and Molecular Physics, and Optics, TA1501-1820, business
Abstract

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.

Published
2021

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