WiredInUSA May 2016

Huawei Marine has reported a breakthrough in unrepeatered submarine cable system transmission, achieving a transmission distance of 627km in a Beijing laboratory. maintaining repeatered systems remains expensive, the ultra-long unrepeatered system is a promising technology due to its ease of installation and lower capital costs. The laboratory test was performed on a 100G channel over an ultra-low loss optical fiber using Huawei Marine’s self-developed enhanced Raman amplifier and remote optical pumping amplifier. These advanced technologies offer a high efficiency of gain bandwidth and an extremely low noise factor, greatly enhancing the transmission capability of a 100G unrepeatered system. Huawei Marine has achieved the deployment and commercial operation of numerous systems, of which the longest 10G and 100G unrepeatered transmission distances reached 426km and 380km, respectively. Long distance transmission test While installing and

Third time unlucky, so far

Negotiations between the Tasmanian government and SubPartners, to build a third fiber optic cable between Tasmania and the mainland, have come to a halt. Two years ago, Brisbane-based SubPartners invited the government to invest $20 million to tap into the latest arm of its global digital cable network. Michael Ferguson, the technology minister, commissioned a consultant to assess the business case for $180,000. SubPartners had intended laying a submarine cable from Perth to Sydney and suggested a spur could be built to connect Tasmania at either Hobart or George Town. It is part of SubPartners’ long-term plan to build the APX-Central (Perth to Sydney), APX-West (Perth to Singapore) and APX-East (Sydney to US) fiber optic submarine cables. SubPartners has reportedly experienced delays gaining the necessary permits and securing key customers and investors. The lack of progress has disappointed industry hopes that the extra cable would create more competition, reduce Internet prices, and provide continuity of connection in the event of cable outage.

wiredInUSA - May 2016

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