We demonstrate 1.01-Pb/s transmission over 52 km with the highest aggregate spectral
efficiency of 91.4 b/s/Hz by using low-crosstalk one-ring-structured 12-core fiber. Our multi-core …

A method for the synthesis of α-chiral allylboronates featuring the Cu(I)-catalyzed enantioselective
substitution of readily available allylic carbonates with a diboron is described. Using …

The Internet today transmits hundreds of terabits per second, consumes 9% of all electricity
worldwide and grows by 20–30% per year 1 , 2 . To support capacity demand, massively …

Copper(I)-catalyzed asymmetric monoborylation of 1,3-dienes has been developed. We
describe the production of either optically active homoallyl- or allylboronates with high regio- …

A versatile synthetic method for the preparation of the allenylboronates, Cu(I)-catalyzed
reaction of propargylic carbonates with a diboron, is described. A Cu(O-t-Bu)−Xantphos catalyst …

The cladding thickness of trench-assisted multi-core fibers was theoretically and experimentally
investigated in terms of excess losses of outer cores. No significant micro-bending loss …

Vom Substitutionsmuster der Doppelbindung in den 1,3‐Eninsubstraten hängt das Resultat
der Titelreaktion ab (siehe Schema), aber beide Produkte, sowohl 1,3‐Dienyl‐ als auch 3‐…

We demonstrate dense SDM transmission of 20-WDM multi-carrier PDM-32QAM signals
over a 40-km 12-core× 3-mode fiber with 247.9-b/s/Hz spectral efficiency. Parallel MIMO …

A multicore fiber with two-pitch layout is proposed to overcome the trade-off between core
number and a cladding diameter of a standard hexagonal layout with a single-core pitch. A …

Multicore fibers and few-mode fibers have potential application in realizing dense-space-division
multiplexing systems. However, there are some tradeoff requirements for designing the …