Chip-based microcavity flat soliton optical frequency comb source solves speed and power consumption problems

https://phys.org/news/2024-01-flat-soliton-microcomb-source.html

"high integration, wide spectrum, high 190 GHz repetition, near zero dispersion, edge coupling (coupling loss <1 dB)... strong thermo-optical effect overcome by double pumping, enabling multi-wavelength light source with flat spectral output... system stable >8 hours... flat spectrum covers 1470-1670 nm, flat spectral occupies 70% entire range... high-capacity optical interconnection, spectroscopy, microwave photonics, precision measurement, high-dimensional parallel optical information processing and communication"

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Researchers develop a new type of frequency comb that promises to further boost the accuracy of timekeeping
https://phys.org/news/2024-03-frequency-boost-accuracy-timekeeping.html

Parallel physical random bit generation towards rates of order 100 Tb/s
https://techxplore.com/news/2024-03-parallel-physical-random-bit-generation.html