China Mobile and industry partners commissioned what they said is the world's first S+C+L three-band (shortwave S, conventional telecom C, longwave L) ultra-low-loss multi-core optical cable in Qingdao, Shandong. Measured performance exceeds current commercial networks: attenuation 0.189 dB/km, inter-core crosstalk < -40 dB/100 km; dispersion and macro-bend loss meet commercial standards, supporting longer, more stable transmission with minimal channel interference.

2026-06-02

China Mobile and industry partners commissioned what they said is the world's first S+C+L three-band (shortwave S, conventional telecom C, longwave L) ultra-low-loss multi-core optical cable in Qingdao, Shandong. Measured performance exceeds current commercial networks: attenuation 0.189 dB/km, inter-core crosstalk < -40 dB/100 km; dispersion and macro-bend loss meet commercial standards, supporting longer, more stable transmission with minimal channel interference.