Verizon has begun installing Gigabit Passive Optical Network (GPON) optoelectronics as part of its FiOS deployments in California, Maryland, Massachusetts, New Jersey, New York, Rhode Island, Pennsylvania, Virginia and Texas. GPON will replace the former broadband passive optical network (BPON) technology Verizon has been using up to this point. Users won't notice anything different, at least at first.
In years to come, they well might. BPON delivers 622 Mbps to 32 potential users in the downstream, with a shared 155 Mbps in the upstream.
GPON supports 2.4Gbps downstream and 1.2Gbps upstream that can be shared among 32 to 64 users. Basically, that means a downstream bandwidth increase of four times and an upstream improvement of eight times.
At some level, GPON is a logical and improved enhancement to BPON technology, and its price now is closer to BPON than was the case some years ago. At another level, the move is protection against the cable industry's upcoming upgrade to Data Over Cable Service Interface Specification 3.0, which will support channel bonding and shared downstream bandwidth as high as 160 Mbps.
Depending on customer take rates, the FiOS GPON network can support much more bandwidth that DOCSIS 3.0, absent some sort of major network upgrade by a cable operator.
So long as on-demand techniques are used to deliver video, most of the additional bandwidth can be allocated for other data-focused uses. As this chart from the IEEE shows, after video, it is data demand which grows most.
