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Proceedings Paper

Energy efficient 850-nm VCSEL based optical transmitter and receiver link capable of 56 Gbit/s NRZ operation
Author(s): N. Ledentsov Jr.; M. Agustin; L. Chorchos; J.-R. Kropp; V. A. Shchukin; V. P. Kalosha; M. Koepp; C. Caspar; J. P. Turkiewicz; N. N. Ledentsov
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Paper Abstract

Optical VCSEL-based links operating in on-off keying (OOK) modulation represent a robust energy-efficient solution for short-reach optical interconnects in datacenters. We report on the optical and electronic elements of such link and their integration into the transmitter (TR) and receiver (RX) assemblies. A single channel transceiver link capable of 40-56 Gbit/s OOK transmission over multimode fiber at record energy-efficiency of ~4.5 pJ/bit is demonstrated. VCSEL driver and receiver transimpedance amplifier (TIA) circuits capable of generating 80-100 Gbit/s error-free signals are characterized on a special test-board assembly. Real-time 56 Gbit/s transmission experiments of the complete link are done, resulting in bit-error ratios (BER) below standard Forward Error Correction (FEC) levels without equalization or signal processing.

Paper Details

Date Published: 1 March 2019
PDF: 8 pages
Proc. SPIE 10938, Vertical-Cavity Surface-Emitting Lasers XXIII, 109380J (1 March 2019); doi: 10.1117/12.2509916
Show Author Affiliations
N. Ledentsov Jr., VI Systems GmbH (Germany)
Warsaw Univ. of Technology (Poland)
M. Agustin, VI Systems GmbH (Germany)
L. Chorchos, Warsaw Univ. of Technology (Poland)
J.-R. Kropp, VI Systems GmbH (Germany)
V. A. Shchukin, VI Systems GmbH (Germany)
V. P. Kalosha, VI Systems GmbH (Germany)
M. Koepp, Fraunhofer Heinrich Hertz Institute (Germany)
C. Caspar, Fraunhofer Heinrich Hertz Institute (Germany)
J. P. Turkiewicz, Warsaw Univ. of Technology (Poland)
N. N. Ledentsov, VI Systems GmbH (Germany)


Published in SPIE Proceedings Vol. 10938:
Vertical-Cavity Surface-Emitting Lasers XXIII
Kent D. Choquette; Luke A. Graham, Editor(s)

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