Hybrid integration methodology for quantum cascade lasers with germanium waveguides in mid-IR

Mid-infrared quantum cascade lasers (QCLs) operating around 5.7 μm have been integrated with germanium waveguides on silicon substrates. QCL bars have been designed and fabricated at the University of Sheffield for the purpose of integration. This hybrid approach uses flip-chip technology that has b...

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Main Authors: Mitchell Colin J., Osman Ahmed, Li Ke, Penadés Jordi S., Nedeljkovic Milos, Zhou Longqi, Groom Kristian M., Heffernan Jon, Mashanovich Goran
Format: Article
Language:English
Published: EDP Sciences 2022-01-01
Series:EPJ Web of Conferences
Online Access:https://www.epj-conferences.org/articles/epjconf/pdf/2022/10/epjconf_eosam2022_01008.pdf
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author Mitchell Colin J.
Osman Ahmed
Li Ke
Penadés Jordi S.
Nedeljkovic Milos
Zhou Longqi
Groom Kristian M.
Heffernan Jon
Mashanovich Goran
author_facet Mitchell Colin J.
Osman Ahmed
Li Ke
Penadés Jordi S.
Nedeljkovic Milos
Zhou Longqi
Groom Kristian M.
Heffernan Jon
Mashanovich Goran
author_sort Mitchell Colin J.
collection DOAJ
description Mid-infrared quantum cascade lasers (QCLs) operating around 5.7 μm have been integrated with germanium waveguides on silicon substrates. QCL bars have been designed and fabricated at the University of Sheffield for the purpose of integration. This hybrid approach uses flip-chip technology that has been successfully transferred from a silicon-on-oxide (SOI) platform working at communication wavelengths, demonstrating the flexibility of this approach. Integration challenges are introduced, and solutions discussed, leading to the next iteration of design presented here.
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spelling doaj.art-616b179e81eb4e22bc7eae72c159d5012022-12-22T04:34:17ZengEDP SciencesEPJ Web of Conferences2100-014X2022-01-012660100810.1051/epjconf/202226601008epjconf_eosam2022_01008Hybrid integration methodology for quantum cascade lasers with germanium waveguides in mid-IRMitchell Colin J.0Osman Ahmed1Li Ke2Penadés Jordi S.3Nedeljkovic Milos4Zhou Longqi5Groom Kristian M.6Heffernan Jon7Mashanovich Goran8Optoelectronics Research Centre, University of SouthamptonOptoelectronics Research Centre, University of SouthamptonOptoelectronics Research Centre, University of SouthamptonOptoelectronics Research Centre, University of SouthamptonOptoelectronics Research Centre, University of SouthamptonDepartment of Electronic and Electrical Engineering, Sir Frederick Mappin Building, University of SheffieldDepartment of Electronic and Electrical Engineering, Sir Frederick Mappin Building, University of SheffieldDepartment of Electronic and Electrical Engineering, Sir Frederick Mappin Building, University of SheffieldOptoelectronics Research Centre, University of SouthamptonMid-infrared quantum cascade lasers (QCLs) operating around 5.7 μm have been integrated with germanium waveguides on silicon substrates. QCL bars have been designed and fabricated at the University of Sheffield for the purpose of integration. This hybrid approach uses flip-chip technology that has been successfully transferred from a silicon-on-oxide (SOI) platform working at communication wavelengths, demonstrating the flexibility of this approach. Integration challenges are introduced, and solutions discussed, leading to the next iteration of design presented here.https://www.epj-conferences.org/articles/epjconf/pdf/2022/10/epjconf_eosam2022_01008.pdf
spellingShingle Mitchell Colin J.
Osman Ahmed
Li Ke
Penadés Jordi S.
Nedeljkovic Milos
Zhou Longqi
Groom Kristian M.
Heffernan Jon
Mashanovich Goran
Hybrid integration methodology for quantum cascade lasers with germanium waveguides in mid-IR
EPJ Web of Conferences
title Hybrid integration methodology for quantum cascade lasers with germanium waveguides in mid-IR
title_full Hybrid integration methodology for quantum cascade lasers with germanium waveguides in mid-IR
title_fullStr Hybrid integration methodology for quantum cascade lasers with germanium waveguides in mid-IR
title_full_unstemmed Hybrid integration methodology for quantum cascade lasers with germanium waveguides in mid-IR
title_short Hybrid integration methodology for quantum cascade lasers with germanium waveguides in mid-IR
title_sort hybrid integration methodology for quantum cascade lasers with germanium waveguides in mid ir
url https://www.epj-conferences.org/articles/epjconf/pdf/2022/10/epjconf_eosam2022_01008.pdf
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