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Angled Flip-Chip In...
Angled Flip-Chip Integration of VCSELs on Silicon Photonic Integrated Circuits
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- Caut, Alexander, 1994 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Jahed, Mehdi, 1988 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Goyvaerts, J. (author)
- Universiteit Gent,Ghent university
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- Rensing, Marc (author)
- Tyndall National Institute at National University of Ireland, Cork
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- Karlsson, Magnus, 1967 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Larsson, Anders, 1957 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Roelkens, Gunther (author)
- Universiteit Gent,Ghent university
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- Baets, Roel G. (author)
- Universiteit Gent,Ghent university
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- O'brien, Peter (author)
- Tyndall National Institute at National University of Ireland, Cork
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(creator_code:org_t)
- 2022
- 2022
- English.
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In: Journal of Lightwave Technology. - 0733-8724 .- 1558-2213. ; 40:15, s. 5190-5200
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https://doi.org/10.1...
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Abstract
Subject headings
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- 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.
Subject headings
- NATURVETENSKAP -- Fysik -- Atom- och molekylfysik och optik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Atom and Molecular Physics and Optics (hsv//eng)
- NATURVETENSKAP -- Fysik -- Annan fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Other Physics Topics (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Annan elektroteknik och elektronik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Other Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)
Keyword
- optical feedback
- Optical feedback
- Vertical cavity surface emitting lasers
- vertical-cavity surfaceemitting laser
- coupling efficiency
- Optical waveguides
- Diffraction gratings
- Gratings
- Diffraction
- silicon-nitride photonic integrated circuit
- Flip-chip integration
- Couplings
Publication and Content Type
- art (subject category)
- ref (subject category)
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- By the author/editor
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Caut, Alexander, ...
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Jahed, Mehdi, 19 ...
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Goyvaerts, J.
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Rensing, Marc
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Karlsson, Magnus ...
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Larsson, Anders, ...
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show more...
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Roelkens, Gunthe ...
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Baets, Roel G.
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O'brien, Peter
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- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Atom and Molecul ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Other Physics To ...
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- ENGINEERING AND TECHNOLOGY
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ENGINEERING AND ...
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and Electrical Engin ...
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and Other Electrical ...
- Articles in the publication
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Journal of Light ...
- By the university
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Chalmers University of Technology