Angled Flip-Chip Integration of VCSELs on Silicon Photonic Integrated Circuits

Caut, Alexander,1994Chalmers tekniska högskola,Chalmers University of Technology (författare)

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.

Jahed, Mehdi,1988Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)jahed (författare)
Goyvaerts, J.Universiteit Gent,Ghent university (författare)
Rensing, MarcTyndall National Institute at National University of Ireland, Cork (författare)
Karlsson, Magnus,1967Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)magkar (författare)
Larsson, Anders,1957Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)andersla (författare)
Roelkens, GuntherUniversiteit Gent,Ghent university (författare)
Baets, Roel G.Universiteit Gent,Ghent university (författare)
O'brien, PeterTyndall National Institute at National University of Ireland, Cork (författare)
Chalmers tekniska högskolaUniversiteit Gent (creator_code:org_t)

Av författaren/redakt...: Caut, Alexander, ...; Jahed, Mehdi, 19 ...; Goyvaerts, J.; Rensing, Marc; Karlsson, Magnus ...; Larsson, Anders, ...; visa fler...; Roelkens, Gunthe ...; Baets, Roel G.; O'brien, Peter; visa färre...

Om ämnet

TEKNIK OCH TEKNOLOGIER: TEKNIK OCH TEKNO ...; och Elektroteknik oc ...; och Annan elektrotek ...

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.