Ultra Long Haul Optical Transmission;

全光网；超长距离传输；

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Riding on cutting-edge technologies such as flex oDSP, super SD-FEC, and flex modulation format, this field trial achieved a record-breaking transmission distance of 1, 500 km using a super-channel PDM-16QAM-based high spectral efficiency solution, and a second record-breaking transmission distance of 3, 325 km using a super-channel Nyquist PDM-QPSK-based ultra-long-haul solution.

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The company installed 63 additional Private IP edge routers for a total of 915 edge routers in 245 sites throughout 63 countries, activated more than 1, 500 kilometers (932 miles) of ultra-long-haul network across the southern part of the United Kingdom, and completed a joint fiber build in Singapore, which almost doubles the coverage of the Singapore fiber-optic network.

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