Qwest Communications is enhancing its nationwide network to deliver speeds of up to 100 Gigabits per second to its customer edge sites. This build-out has begun on Qwest’s network and is planned through 2010, though no further details are publicly available at the moment. But potential customers can expect that 100 Gbps local access to the backbone will be available in markets where Qwest already offers Ethernet-based "iQ Networking" and "QWave" data networking services.
But Pieter Poll, Qwest CTO, says he is concerned that, after a few years, optical component limitations could impair its ability to keep its cost per bit in line with customer expectations. The basic issue is that customers consume 40 percent more bandwidth every year and expect prices to remain flat.
That means Qwest has to continue reducing its cost per bit by more than 40 percent every year to keep up, Poll told Telephony Online. And Poll worries that Moore's Law, which generally governs development in the electrical domain, will not be possible in the optical domain.
“In the optical environment, you have basic physics issues in how you can integrate to bring costs down," he says. "There is no Moore’s Law in the optical world."
If that observation proves correct, Qwest wil have to look for cost reductions elsewhere. Operations, marketing, overhead, sales and other costs might have to be cut if the gains cannot be made in linear fashion on the optical network element front.
One suspects optical suppliers will do better than Poll now forecasts, but the challenge appears to be real.
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