Broadcast digital video delivered over WDM passive optical networks
- 1 July 1996
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Photonics Technology Letters
- Vol. 8 (7) , 930-932
- https://doi.org/10.1109/68.502274
Abstract
A robust broadcast digital video upgrade for high-performance WDM passive optical networks is demonstrated. The video format is derived from a commercially available direct satellite TV service. We broadcast 81 high-quality digital video channels and 29 audio channels, while simultaneously demonstrating error-free bidirectional transmission over two types of WDM PONs: the first is an entry-level system, which uses low-cost broad-band LED sources; the second ("RITE-Net") is a high-performance network, which shares a single 1.5-/spl mu/m tunable laser source among all subscribers to provide virtual point-to-point connectivity. The broadcast upgrade is implemented by adding a directly modulated 1.3-/spl mu/m uncooled LED transmitter at the central office and an ac-coupled receiver at each subscriber's optical network unit. The outside fiber plant remains unaltered.Keywords
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