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5 March 2021 Narrow spectrum VCSEL development for high performance 100G transceivers and increased transmission distance over multimode fiber
N. Ledentsov, L. Chorchos, O. Makarov, J.-R. Kropp, V. A. Shchukin, V. P. Kalosha, J. P. Turkiewicz, N. N. Ledentsov
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Proceedings Volume 11704, Vertical-Cavity Surface-Emitting Lasers XXV; 117040P (2021) https://doi.org/10.1117/12.2578216
Event: SPIE OPTO, 2021, Online Only
Abstract
We report on vertical cavity surface emitting lasers (VCSELs) having a -3dB modulation bandwidth above 30 GHz and a narrow spectrum down to single mode (SM) operation. The 850 nm and 910 nm SM VCSELs in combination with the IN5612 VCSEL driver from Inphi Corporation allowed to reach 106 Gb/s PAM4 with the TDECQ values of only 1.5 dB. For the multimode VCSELs, TDECQ of ~2.6 dB were achieved in combination with the same driver chip. VCSELs with the reduced spectral width allow to cover transmission distance over multimode fiber reaching 1.0-2.5 km at 50 Gbaud. Furthermore, reduction of the aperture size to a certain limit allows to reach ultimate modulation bandwidths at the same current density as applied in the large aperture VCSELs but at lower total currents and thus much lower current-induced overheating. The latter enables a significant improvement in the reliability of the devices and stimulates further research in novel types of VCSEL-based devices.
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N. Ledentsov, L. Chorchos, O. Makarov, J.-R. Kropp, V. A. Shchukin, V. P. Kalosha, J. P. Turkiewicz, and N. N. Ledentsov "Narrow spectrum VCSEL development for high performance 100G transceivers and increased transmission distance over multimode fiber", Proc. SPIE 11704, Vertical-Cavity Surface-Emitting Lasers XXV, 117040P (5 March 2021); https://doi.org/10.1117/12.2578216
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KEYWORDS
Vertical cavity surface emitting lasers
Multimode fibers
Transceivers
Data processing
Electronics
Interfaces
Receivers
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