Telecom-band-integrated multimode photonic quantum-memory

https://phys.org/news/2023-07-telecom-band-integrated-multimode-photonic-quantum-memory.html 

"erbium (Er3+) doped lithium niobate... telecom-band-integrated multimode storage device, lithium niobate-based waveguide femtosecond laser micromachining coupled to single-mode fiber pigtail using optical collimator either side setup facilitate compatibility fiber communication... on-chip quantum memory integration time-bandwidth product of 800, storage bandwidth 4 GHz wide atomic frequency comb, storage time 200 ns, negligible crosstalk... large capacity scalable fiber communication"

Related: Team develops way to integrate electro-optic modulator device on end faces of a single-mode optical fiber jumper
https://phys.org/news/2023-08-team-electro-optic-modulator-device-single-mode.html