Yangtze Optical Fibre and Cable (长飞) achieved 0.04 dB/km hollow-core-fiber attenuation and completed over 13 commercial and pilot projects.

Yangtze Optical Fibre and Cable’s (长飞) hollow-core-fiber compute-interconnection technology was highlighted among the conference’s annual major breakthrough achievements. The report gives a minimum attenuation of 0.04 decibels per kilometer, a fiber transmission-loss metric rather than a compute-performance figure.

A separate manufacturing metric was a longest fiber draw of 91.2 kilometers. The report describes both the attenuation and drawing-length achievements as world records, but provides no underlying measurement documentation or independent record verification.

The company had completed more than 13 commercial and pilot projects in China and overseas. Because that count combines commercial deployments with pilots, it should not be presented as more than 13 fully commercial networks; customer names, individual route lengths, and project revenues are not disclosed.