[HTML][HTML] Recent Advances in Coherent Optical Communications for Short-Reach: Phase Retrieval Methods

AS Karar, ARE Falou, JMH Barakat, ZN Gürkan… - Photonics, 2023 - mdpi.com
Short-reach transmission systems traditionally utilize intensity modulation (IM) at the
transmitter and direct detection (DD) at the receiver due to their cost-effectiveness, small …

Digital subcarrier multiplexing: Enabling software-configurable optical networks

D Welch, A Napoli, J Bäck, S Buggaveeti… - Journal of Lightwave …, 2023 - opg.optica.org
The various topologies, traffic patterns and cost targets of optical networks have prevented
the deployment of end-to-end solutions across multi-domains, and the optimization of the …

Modulation format and digital signal processing for IM-DD optics at post-200G era

D Che, X Chen - Journal of Lightwave Technology, 2023 - ieeexplore.ieee.org
200-Gb/s per lane intensity-modulation (IM) direct-detection (DD) optics are being
commercialized to support 800G and 1.6 T applications inside datacenters. Though IM-DD …

Fast-convergence digital signal processing for coherent PON using digital SCM

H Wang, J Zhou, Z Xing, Q Feng, K Zhang… - Journal of Lightwave …, 2023 - opg.optica.org
It is foreseeable that the 100 Gb/s/and beyond passive optical network (PON) will be
required in future optical access networks to meet the explosive growth of data traffic. The …

Probabilistic shaping for high-speed unamplified IM/DD systems with an O-band EML

MSB Hossain, G Böcherer, T Rahman… - Journal of Lightwave …, 2023 - ieeexplore.ieee.org
Probabilistic constellation shaping has been used in long-haul optically amplified coherent
systems for its capability to approach the Shannon limit and realize fine rate granularity. The …

Scalable filterless coherent point-to-multipoint metro network architecture

C Castro, A Napoli, M Porrega, J Bäck… - Journal of Optical …, 2023 - opg.optica.org
Metro aggregation is one of the fastest growing segments in telecommunications in terms of
data traffic. At the intersection of core and access, where coherent modules compete with …

End-to-end optimization of constellation shaping for Wiener phase noise channels with a differentiable blind phase search

A Rode, B Geiger, S Chimmalgi… - Journal of Lightwave …, 2023 - opg.optica.org
As the demand for higher data throughput in coherent optical communication systems
increases, we need to find ways to increase capacity in existing and future optical …

Silicon photonic single-segment IQ modulator for net 1 Tbps/λ transmission using all-electronic equalization

E Berikaa, MS Alam, A Samani, E El-Fiky… - Journal of Lightwave …, 2023 - opg.optica.org
There is a continuous need to scale optical communication networks' capacity to cope with
the exponential growth of data traffic. Silicon photonics (SiP) retains significant potential as a …

Digitally Mitigating Doppler Shift in High-Capacity Coherent FSO LEO-to-Earth Links

MA Fernandes, PA Loureiro… - Journal of Lightwave …, 2023 - ieeexplore.ieee.org
The range of applications enabled by the low-Earth orbit (LEO) constellations continues to
increase, going from providing worldwide broadband internet access, to the transmission of …

DSP design for point-to-multipoint transmission

T Duthel, CRS Fludger, B Liu, A Napoli… - 2023 Optical Fiber …, 2023 - ieeexplore.ieee.org
Coherent optical transmission systems using digital sub-carriers are ideal for point-to-multi-
point applications. Many functional blocks are similar to the ones of single-channel …