Journal article
Optimized eight-dimensional lattice modulation format for IM-DD 56 Gb/s optical interconnections using 850 nm VCSELs
In this paper a novel eight-dimensional lattice optimized modulation format, Block Based 8-dimensional/8-level (BB8), is proposed, taking into account the tradeoff between high performance and modulation simplicity. We provide an experimental performance comparison with its n-level pulse amplitude modulation counterparts in a 28 GBd 850-nm vertical-cavity surface-emitting laser based intensity-modulation direct-detection system.
Successful data transmission over 100 m multimode fiber links of OM3 and OM4 types is demonstrated, with a power margin close to 2 dB at 100GBASE-SR4 forward error correction threshold. A simplified bit-to-symbol mapping and corresponding symbol-to-bit demapping algorithms, together with a hyperspace hard-decision, are designed specifically for applications of short-reach data links.
These algorithms are expected to use affordable computational resources with relatively low latency.
| Language: | English |
|---|---|
| Publisher: | IEEE |
| Year: | 2017 |
| Pages: | 1407-14 |
| ISSN: | 15582213 and 07338724 |
| Types: | Journal article |
| DOI: | 10.1109/JLT.2017.2656389 |
| ORCIDs: | Lyubopytov, Vladimir and Tafur Monroy, Idelfonso |
Modulation Optical fiber communications Optical interconnections Vertical cavity surface emitting lasers
Algorithm design and analysis BB8 Constellation diagram IM-DD optical interconnections Lattices OM3 links OM4 links Optimization VCSEL bit-to-symbol mapping algorithm block based 8-dimensional/8-level distance 100 m forward error correction hyperspace hard-decision intensity modulation intensity-modulation direct-direction scheme laser cavity resonators modulation multimode fiber links n-level pulse amplitude modulation optical fiber communication optical fibre communication optical interconnections optical links optical modulation optimisation optimized eight-dimensional lattice modulation format pulse amplitude modulation short-reach data links surface emitting lasers symbol-to-bit demapping algorithm vertical cavity surface emitting lasers wavelength 850 nm
