Invention:
Researchers at the University of Arizona have developed an orthogonal frequency division multiplexing (OFDM) optical communication system for access networks that can work in a direct receiver mode and in a coherent receiver mode. Compared to currently available OFDM products, the novel system has fewer components and is simpler to set up.
Background:
OFDM technology is used to transmit subcarrier frequencies, thereby creating a larger bandwidth. Systems can either use a direct receiver (amplitude only) or a coherent receiver (amplitude and phase), but not both.
Advantages:
- Scalability
- Flexibility
- Efficiency
- Larger bandwidth
- Faster network speeds
Applications:
- 4G wireless LTE
- DSL internet
- Digital TV
