Lukasz Chorchos,1 Nikolay Ledentsov Jr.https://orcid.org/0000-0003-4854-9476,2 Oleg Makarov,2 Vitaly A. Shchukin,2 Nikolai Ledentsov,2 Joerg-R. Kropp,2 Jaroslaw P. Turkiewicz1
1Warsaw Univ. of Technology (Poland) 2VI Systems GmbH (Germany)
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Applying coherent arrays of muti-aperture lasers was proposed to improve data transmission over multimode fiber. We propose a novel compact a coherent and incoherent multi-aperture VCSEL array design in which multiple single-mode VCSEL apertures are electrically driven in parallel. Such approach allows a high output power as in standard multimode devices but shows significantly reduced spectral width not exceeding 0.2nm as well as high speed performance exceeding 25GHz with current density ~20kA/cm2 and beam divergence of 22O (1/e2). Moreover, we study the application of such devices for IM/DD 100Gbit/s PAM-4 and 50Gbit/s OOK.
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Lukasz Chorchos, Nikolay Ledentsov Jr., Oleg Makarov, Vitaly A. Shchukin, Nikolai Ledentsov, Joerg-R. Kropp, Jaroslaw P. Turkiewicz, "100Gb/s short wavelength VCSELs applying a multi-aperture approach," Proc. SPIE PC12439, Vertical-Cavity Surface-Emitting Lasers XXVII, PC1243904 (17 March 2023); https://doi.org/10.1117/12.2650389