Systems for extending WDM transmission into the O-band
US8503881B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 3, 2008 |
| Grant date | Aug 6, 2013 |
| Priority date | — |
| Expiry date | Dec 20, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J14/06
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Method, apparatus and systems for a wavelength division multiplexing system operating at O-Band. The system includes a transmitter for wavelength division multiplexing digital O-band optical channels into a multiplexed optical signal, amplifying and transmitting the multiplexed optical signal, a fiber transmission span using constant intensity modulation and semiconductor optical amplification, and a receiver for receiving and amplifying the transmitted multiplexed optical signal and restoring the individual digital O-band optical signals. In an embodiment, the transmission span is a single mode fiber transmission span and in another embodiment includes an optical amplifier module coupled into the fiber transmission span. In another embodiment, the transmission span includes a length of O-band dispersion compensating fiber to reduce four-wave mixing. In another embodiment the system uses wavelength division multiplexing in combination with polarization interleaving. In another embodiment, the wavelength division multiplexing system operates at both O-Band and C-Band.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.