Design of an 845-nm GaAs Vertical-Cavity Silicon-Integrated Laser with an Intracavity Grating for Coupling to a SiN Waveguide Circuit

A short-wavelength hybrid GaAs vertical-cavity silicon-integrated laser (VCSIL) with in-plane waveguide coupling has been designed and optimized using numerical simulations. A shallow etched silicon nitride (SiN) grating is placed inside the cavity of the hybrid vertical-cavity silicon-integrated la...

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Main Authors: Sulakshna Kumari, Johan Gustavsson, Emanuel P. Haglund, Jorgen Bengtsson, Anders Larsson, Gunther Roelkens, Roel Baets
Format: Article
Language:English
Published: IEEE 2017-01-01
Series:IEEE Photonics Journal
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Online Access:https://ieeexplore.ieee.org/document/7954576/
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author Sulakshna Kumari
Johan Gustavsson
Emanuel P. Haglund
Jorgen Bengtsson
Anders Larsson
Gunther Roelkens
Roel Baets
author_facet Sulakshna Kumari
Johan Gustavsson
Emanuel P. Haglund
Jorgen Bengtsson
Anders Larsson
Gunther Roelkens
Roel Baets
author_sort Sulakshna Kumari
collection DOAJ
description A short-wavelength hybrid GaAs vertical-cavity silicon-integrated laser (VCSIL) with in-plane waveguide coupling has been designed and optimized using numerical simulations. A shallow etched silicon nitride (SiN) grating is placed inside the cavity of the hybrid vertical-cavity silicon-integrated laser to both set the polarization state of the resonant optical field and to enable output coupling to a SiN waveguide with high efficiency. The numerical simulations predict that for apertures of 4 and 6-<inline-formula><tex-math notation="LaTeX">$\mu\text{m}$</tex-math> </inline-formula> oxide-confined VCSILs operating at 845-nm wavelength, a slope efficiency for the light coupled to the waveguide of 0.18 and 0.22 mW/mA is achievable, respectively, while maintaining a low threshold gain of 583 and 589 cm <sup>&#x2212;1</sup>, respectively, for the lasing.
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publishDate 2017-01-01
publisher IEEE
record_format Article
series IEEE Photonics Journal
spelling doaj-art-cde29f5f62914a679d1f2d2c95787be02025-07-01T23:28:20ZengIEEEIEEE Photonics Journal1943-06552017-01-01941910.1109/JPHOT.2017.27173807954576Design of an 845-nm GaAs Vertical-Cavity Silicon-Integrated Laser with an Intracavity Grating for Coupling to a SiN Waveguide CircuitSulakshna Kumari0Johan Gustavsson1Emanuel P. Haglund2Jorgen Bengtsson3Anders Larsson4Gunther Roelkens5Roel Baets6Photonics Research Group, imec, Ghent University, Ghent, BelgiumPhotonics Laboratory, Department of Microtechnology and Nanoscience, Chalmers University of Technology, G&#x00F6;teborg, SwedenPhotonics Laboratory, Department of Microtechnology and Nanoscience, Chalmers University of Technology, G&#x00F6;teborg, SwedenPhotonics Laboratory, Department of Microtechnology and Nanoscience, Chalmers University of Technology, G&#x00F6;teborg, SwedenPhotonics Laboratory, Department of Microtechnology and Nanoscience, Chalmers University of Technology, G&#x00F6;teborg, SwedenPhotonics Research Group, imec, Ghent University, Ghent, BelgiumPhotonics Research Group, imec, Ghent University, Ghent, BelgiumA short-wavelength hybrid GaAs vertical-cavity silicon-integrated laser (VCSIL) with in-plane waveguide coupling has been designed and optimized using numerical simulations. A shallow etched silicon nitride (SiN) grating is placed inside the cavity of the hybrid vertical-cavity silicon-integrated laser to both set the polarization state of the resonant optical field and to enable output coupling to a SiN waveguide with high efficiency. The numerical simulations predict that for apertures of 4 and 6-<inline-formula><tex-math notation="LaTeX">$\mu\text{m}$</tex-math> </inline-formula> oxide-confined VCSILs operating at 845-nm wavelength, a slope efficiency for the light coupled to the waveguide of 0.18 and 0.22 mW/mA is achievable, respectively, while maintaining a low threshold gain of 583 and 589 cm <sup>&#x2212;1</sup>, respectively, for the lasing.https://ieeexplore.ieee.org/document/7954576/Waveguidegratingssilicon nanophotonicssemiconductor lasers.
spellingShingle Sulakshna Kumari
Johan Gustavsson
Emanuel P. Haglund
Jorgen Bengtsson
Anders Larsson
Gunther Roelkens
Roel Baets
Design of an 845-nm GaAs Vertical-Cavity Silicon-Integrated Laser with an Intracavity Grating for Coupling to a SiN Waveguide Circuit
IEEE Photonics Journal
Waveguide
gratings
silicon nanophotonics
semiconductor lasers.
title Design of an 845-nm GaAs Vertical-Cavity Silicon-Integrated Laser with an Intracavity Grating for Coupling to a SiN Waveguide Circuit
title_full Design of an 845-nm GaAs Vertical-Cavity Silicon-Integrated Laser with an Intracavity Grating for Coupling to a SiN Waveguide Circuit
title_fullStr Design of an 845-nm GaAs Vertical-Cavity Silicon-Integrated Laser with an Intracavity Grating for Coupling to a SiN Waveguide Circuit
title_full_unstemmed Design of an 845-nm GaAs Vertical-Cavity Silicon-Integrated Laser with an Intracavity Grating for Coupling to a SiN Waveguide Circuit
title_short Design of an 845-nm GaAs Vertical-Cavity Silicon-Integrated Laser with an Intracavity Grating for Coupling to a SiN Waveguide Circuit
title_sort design of an 845 nm gaas vertical cavity silicon integrated laser with an intracavity grating for coupling to a sin waveguide circuit
topic Waveguide
gratings
silicon nanophotonics
semiconductor lasers.
url https://ieeexplore.ieee.org/document/7954576/
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