Abstract
"http://www.osa-jon.org/features/OAN_2005.html". Feature Issue on Optical Access
Networks (OAN). Passive optical networks (PONs) have the potential to be high-speed
access networks. However, PONs have higher installation and maintenance costs. One way
to overcome these costs is to maximize the sharing, i.e., connect as many subscribers as
possible onto one PON serving area. We propose a novel multistage linear add-drop (LAD)
architecture for high-capacity PONs that is flexible, scalable, and provides
bidirectional and symmetric wavelength-division multiplexing data services. As a result,
we can provide real triple play services (video, data, and voice) at higher rates and
lower cost. We also demonstrate a three-stage LAD PON experimental test bed that employs
40 downstream wavelengths, 40 upstream wavelengths, and a 20 nm broadcast band for video
and other broadcast services. This access network design can support symmetric data
services up to 10 Gbits/s along with 2.5 Gbits/s of video data for each of as many as
1280 users that would be in a 20 km range.
© 2005 Optical Society of America
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