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Proceedings Paper

Quantum-dot oxide-confined 850-nm VCSELs with extreme temperature stability operating at 25 Gbit/s up to 180deg C
Author(s): N. Ledentsov; L. Chorchos; O. Makarov; J.-R. Kropp; V. A. Shchukin; V. P. Kalosha; J. P. Turkiewicz; N. Cherkashin; N. N. Ledentsov
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Paper Abstract

New applications in sensing, automotive and on-board applications require vertical-cavity surface-emitting lasers (VCSELs) operating at high data rates up to very high ambient temperatures. We study temperature stability of the 850 nm Quantum-Dot (QD) VCSELs and benchmark them to Quantum-Well (QW) VCSELs of similar design.

QD VCSELs enable extension of the temperature stability and demonstrate threshold currents below 1 mA for operation range from 30°C to 200°C. The role of gain to cavity detuning is discussed in details. 25 Gbit/s NRZ multi-mode fiber transmission with QD VCSELs is realized at temperatures up to 180°C. Pulsed operation of QD VCSELs with 8 μm oxide aperture diameter is studied at temperatures from 30°C to 125°C and 1 W peak power is realized on 100 ns pulses at room temperature.

Paper Details

Date Published: 24 February 2020
PDF: 7 pages
Proc. SPIE 11300, Vertical-Cavity Surface-Emitting Lasers XXIV, 113000H (24 February 2020); doi: 10.1117/12.2543244
Show Author Affiliations
N. Ledentsov, VI Systems GmbH (Germany)
Warsaw Univ. of Technology (Poland)
L. Chorchos, VI Systems GmbH (Germany)
Warsaw Univ. of Technology (Poland)
O. Makarov, VI Systems GmbH (Germany)
J.-R. Kropp, VI Systems GmbH (Germany)
V. A. Shchukin, VI Systems GmbH (Germany)
V. P. Kalosha, VI Systems GmbH (Germany)
J. P. Turkiewicz, Warsaw Univ. of Technology (Poland)
N. Cherkashin, CEMES-CNRS (France)
N. N. Ledentsov, VI Systems GmbH (Germany)

Published in SPIE Proceedings Vol. 11300:
Vertical-Cavity Surface-Emitting Lasers XXIV
Luke A. Graham; Chun Lei, Editor(s)

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