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1 March 2019 Energy efficient 850-nm VCSEL based optical transmitter and receiver link capable of 56 Gbit/s NRZ operation
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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Proceedings Volume 10938, Vertical-Cavity Surface-Emitting Lasers XXIII; 109380J (2019) https://doi.org/10.1117/12.2509916
Event: SPIE OPTO, 2019, San Francisco, California, United States
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.
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N. Ledentsov Jr., M. Agustin, L. Chorchos, J.-R. Kropp, V. A. Shchukin, V. P. Kalosha, M. Koepp, C. Caspar, J. P. Turkiewicz, and N. N. Ledentsov "Energy efficient 850-nm VCSEL based optical transmitter and receiver link capable of 56 Gbit/s NRZ operation", Proc. SPIE 10938, Vertical-Cavity Surface-Emitting Lasers XXIII, 109380J (1 March 2019); https://doi.org/10.1117/12.2509916
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KEYWORDS
Vertical cavity surface emitting lasers
Receivers
Modulation
Transmitters
Optical fabrication
Oscilloscopes
Connectors
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