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China Mobile Launches World's First Three-Band Ultra-Low-Loss Multi-Core Optical Cable Line
China Mobile announced that the world's first S+C+L three-band (short-wavelength band + conventional communication band + long-wavelength band) ultra-low-loss multi-core optica...
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China Mobile announced that the world's first S+C+L three-band (short-wavelength band + conventional communication band + long-wavelength band) ultra-low-loss multi-core optical cable line, independently designed in collaboration with industry partners, has recently been completed and put into operation in Qingdao, Shandong.

China Mobile adopted an innovative four-core fiber structure, integrating four independent signal channels within an optical fiber as thin as a strand of hair. It also extended the ultra-low-loss and large effective area characteristics from the C and L bands to the S band, enabling three-band parallel transmission.

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This is equivalent to expanding the information highway from two lanes to three lanes, increasing single-core bandwidth by nearly 50%. The capacity of a single optical fiber reaches more than five times that of traditional optical fiber, fully meeting future demand driven by AI computing and terabit-level ultra-high-speed transmission.

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