Angled flip-chip integration of VCSELs on silicon photonic integrated circuits
dc.contributor.author | Caut, Alexander | |
dc.contributor.author | Jahed, Mehdi | |
dc.contributor.author | Goyvaerts, Jeroen | |
dc.contributor.author | Rensing, Marc | |
dc.contributor.author | Karlsson, Magnus | |
dc.contributor.author | Larsson, Anders | |
dc.contributor.author | Roelkens, Gunther | |
dc.contributor.author | Baets, Roel | |
dc.contributor.author | O'Brien, Peter | |
dc.contributor.funder | Horizon 2020 | en |
dc.contributor.funder | Vetenskapsrådet | en |
dc.date.accessioned | 2022-07-05T15:15:32Z | |
dc.date.available | 2022-07-05T15:15:32Z | |
dc.date.issued | 2022-05-05 | |
dc.date.updated | 2022-07-05T15:04:40Z | |
dc.description.abstract | An investigation of angled flip-chip integration of a singlemode 850 nm vertical-cavity surface-emitting laser (VCSEL) on a silicon nitride photonic integrated circuit (PIC) is presented. Using numerical FDTD simulations, we consider the conditions under which the VCSEL can be integrated at an angle over a grating coupler with high coupling efficiency and low optical feedback. With both coupling efficiency and feedback decreasing with increasing angle, there is a trade-off. With co-directional coupling, first-order diffraction loss sets in at a critical angle, which further reduces the coupling efficiency. No such critical angle exists for contra-directional coupling. We also experimentally demonstrate angled flip-chip integration of GaAs-based 850 nm single transverse and polarization mode VCSELs over grating couplers on a silicon-nitride PIC. At the output grating coupler, light is either collected by an optical fiber or converted to a photocurrent using a flip-chip integrated GaAs-based photodetector. The latter forms an on-PIC optical link. We measured an insertion loss of 21.9, 17.6 and 20.1 dB with a singlemode fiber, multimode fiber and photodetector over the output grating coupler, respectively. | en |
dc.description.sponsorship | Vetenskapsrådet (2016-06077, iTRAN). | en |
dc.description.status | Peer reviewed | en |
dc.description.version | Accepted Version | en |
dc.format.mimetype | application/pdf | en |
dc.identifier.citation | Caut, A., Jahed, M., Goyvaerts, J., Rensing, M., Karlsson, M., Larsson, A., Roelkens, G., Baets, R. and O'Brien, P. (2022) 'Angled flip-chip integration of VCSELs on silicon photonic integrated circuits', Journal of Lightwave Technology. doi: 10.1109/JLT.2022.3172781 | en |
dc.identifier.doi | 10.1109/JLT.2022.3172781 | en |
dc.identifier.eissn | 1558-2213 | |
dc.identifier.issn | 0733-8724 | |
dc.identifier.journaltitle | Journal of Lightwave Technology | en |
dc.identifier.uri | https://hdl.handle.net/10468/13341 | |
dc.language.iso | en | en |
dc.publisher | Institute of Electrical and Electronics Engineers (IEEE) | en |
dc.relation.project | info:eu-repo/grantAgreement/EC/H2020::IA/688519/EU/Silicon Nitride Photonic Integrated Circuit Pilot line for Life Science Applications in the Visible Range/PIX4LIFE | en |
dc.rights | © 2022, IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. | en |
dc.subject | Coupling efficiency | en |
dc.subject | Couplings | en |
dc.subject | Diffraction | en |
dc.subject | Diffraction gratings | en |
dc.subject | Flip-chip integration | en |
dc.subject | Gratings | en |
dc.subject | Optical feedback | en |
dc.subject | Optical waveguides | en |
dc.subject | Silicon-nitride photonic integrated circuit | en |
dc.subject | Vertical cavity surface emitting lasers | en |
dc.title | Angled flip-chip integration of VCSELs on silicon photonic integrated circuits | en |
dc.type | Article (peer-reviewed) | en |
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